1886 Greenwich Spectroscopic and Photographic …...SPECTROSCOPIC AND PHOTOGRAPHIC OBSERVATIONS MADE AT THB ROYAL OBSERVATORY, GREENWICH, 1886. (EXTRACTED FROM THE GREENWICH OBSERVATIONS,

G R E E N W I C H

SPECTROSCOPIC AND PHOTOGRAPHIC

R E S U L T S ,

1886.

SPECTROSCOPIC AND PHOTOGRAPHIC

OBSERVATIONS

MADE AT THB

ROYAL OBSERVATORY, GREENWICH,

1886.

(EXTRACTED FROM THE GREENWICH OBSERVATIONS, 1886.)

GBBBNWIOH OBSEBVATIONS, 1886. (a) 2

Blank page retained for pagination

GBEENWICH SPECTEOSCOPIC AND PHOTOGRAPHICEESULTS, 1886,

INTRODUCTION.

§ 13. Spectroscopic Observations in the Year 1880.

The spectroscope used for these observations was mounted on the South-eastequatoreal, the object-glass of which (made by Merz and Son of Munich) has a,clear aperture of 12'8 inches, with a focal length of about 17"- 10in-

This section contains :—Observations of Solar Prominences ; Observations of theSpectrum of a Sun Spot j Measures of Displacement of Lines in the Spectra ofStars, Moon and Planets ; Experimental Observations of the Displacement of Lines inthe Spectra of Stars made with the Reversion Apparatus of the Oxford ReversionSpectroscope ; Collected Results for Motions in the line of Sight and for the Rotationof Jupiter ; and Observations of the Spectra of 51 Schjellerup, Nova Orionis, andComets e 1885 and/1880.

For the observations of solar prominences, the Greenwich Civil Times, commencingat Greenwich mean midnight and reckoning from 0 to 24 hours, are given ; andthe position-angle from the Sun's axis of the two extremities of each prominence,tofether with its height in seconds of arc. The Sun's image was always placedcentrally with respect to the position-circle, a radial excentricity being given to thespectroscope, so that the slit swept round the Sun's limb.

The position-angles have been first corrected for index-error of the position-circle,which is determined at the time of observation.

The method employed for this purpose has been to set the position-circle to 90°plus the approximate index-error, so that the slit points approximately E. and W.,and to move the telescope by the slo\v motions until either the north or the southlimb of the Sun just comes into the middle of the field. The position-circle is thenread, and the spectroscope rotated through 180°, the telescope remaining rigidlyclamped, and as the diurnal motion brings the Sun up to the slit again, the limbpreviously observed is again brought to the centre of the field by means of therotation of the spectroscope. The position-circle is read a second time, and themean of the two readings, corrected for the inclination of the Sun's path, is takenas the zero of the position-circle.

(a)3

1л* INTKODUCTION то GREENWICH-SPECTBOSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.

The corrected position-angles have then been converted into Heliographie N. P. D.by applying as a correction the position-angle of the Sun's north pole, taken fromthe " Auxiliary Tables for determining the Angle of Position of the Sun's Axis,and the Latitude and Longitude of the Earth referred to the Sun's Equator," byWarren De La Rue, F.R.S.

The heights of the bright lines seen in the prominences or chromosphere wereread off on a pearl scale, divided to O'OOS inch (corresponding to 2"'4), and carriedby the micrometer of the spectroscope. Other particulars are given in the note at thehead of this section.

The measures of displacement of lines in the spectra of stars were made with amicrometer in the viewing telescope of the "Half-prism" Spectroscope. Theeye-piece used gives a magnifying power of 14. Estimations of the displacement, interms of the apparent breadth of the bright comparison-line, were also made ; thebreadth corresponding to any given width of slit being determined by a carefulobservation under similar conditions. lreTi of the screw for opening the slitcorresponds to O'Ol inch, or 10". It has not been thought necessary to give indetail all these particulars of the reductions. The values used in each case may beinferred from the observed motion, which is the algebraic sum of the concludedmotion and of the Earth's motion. A displacement of one tenth-metre correspondsat D to a motion of 31-7 miles per second, at b to a motion of 36*1 miles, and at Fto a motion of 38*4 miles. For comparison with the spectrum of hydrogen or otherchemical element, an image of the vacuum tube or electrodes is formed on the slit,by means of a transparent plate of glass placed at an angle of 45° with the axis ofthe collimator, in connexion with a collimating lens, so that the cone of raysfrom the comparison-light fills the whole of the object-glass of the collimator.

Whenever the star-line was sufficiently distinct to allow of its being seen at thesame time as the bright comparison-line, a direct comparison of the two was made ;in other cases the bright line was compared with the pointer of the micrometerwhich had just previously been placed on the star-line, giving an indirectcomparison.

The reading of the position-circle is given, as it is conceivable that the resultsmight be affected by the position of the spectroscope. The slit lies north and southwhen the reading is 5°.

The observations of displacement made with the reversion apparatus of the OxfordReversion Spectroscope were confined to estimations, no actual micrometric measuresbeing made, for reasons given in the account of the observations. The breadth of the

MEASURES OF PHOTOGRAPHS OF THE SUN. v

bright comparison-line was carefully measured (with the same width of slit) with themicrometer and viewing telescope of the " Half-prism" Spectroscope, and the equivalentdisplacement in wave-length and motion in miles per second were found in the usualmanner. The reversing apparatus in this spectroscope consists of two totally reflectingreversion prisms placed between the train of dispersing prisms and the viewingtelescope. The refracting edges of the trains of prisms being supposed for convenienceof description to be vertical, the lower half of the pencil falls on the lower reversionprism and is reversed end for end by reflexion, the edge of the prism being perpendicularto the length of the spectrum, and the upper half falls on the upper reversionprism pkced with its edge parallel to the length of the spectrum, so that the upperhalf of the spectrum, after reflexion, is reversed top for bottom. Thus, after passingthrough this reversing apparatus, the red is on the right in one half of the spectrumand on the left in the other. By turning the upper prism round an axis parallel toits edge, the spectra may be superposed or separated to any required distance in adirection perpendicular to their length. By turning the lower prism about an axisparallel to its edge or by turning the train of dispersing prisms, any given line in thereversed half may be brought into coincidence with the corresponding line in theother half. For these adjustments suitable screws are provided.

In practice the two spectra were adjusted so as to be just in contact, and the broadF lines in the two spectra brought into coincidence by either of the methods mentioned.The light from a hydrogen vacuum tube was then flashed in, and the amount ofdisplacement of the two images of the bright H/3 line was estimated in terms of thebreadth of either.

With regard to the observations of the spectra of 51 Schjellerup, Nova Orionis,and the Comets, it ia sufficient to remark that curves have been laid down in theusual manner, connecting micrometer readings and wave-lengths for both the" Half-prism " and Single-prism Spectroscopes, and that the value of a revolution ofthe micrometer in tenthmetres of wave-length has been inferred from these for thepoint of the spectrum measured. The tabular wave-lengtha of comparison-lineshave been taken from Angstrom's Spectre Normal du Soleil.

\

§ 14. Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk onPhotographs taken at the Royal Observatory, Greenwich, at Dehra Dun in India,.and at the Royal Alfred Observatory, Mauritius, in the year 1886 ; with thededuced Heliographie Longitudes and Latitudes.

The photographs from which these measures were made were taken either atGreenwich, at Dehra Dun, North-W est Provinces, India, or at the lioyal AlfredObservatory, Mauritius.

•vi INTRODUCTION то GREENWICH SPECTROSCOPÏC AND PHOTOGRAPHIC RESULTS, 1886.

The photographs of the Greenwich series were taken with the Dallmeyer Photo-heliograph returned from the Transit of Venus expedition to New Zealand, which,as now adapted, gives a solar image of 8 inches diameter on the photographic plate.

Bromo-iodized gelatine dry plates with alkaline development have been regularlyused throughout the year.

The Indian photographs, which have been forwarded by the Solar PhysicsCommittee to till the gaps in the Greenwich series, were taken under thesuperintendence of J. B. N. Hennessey, F.K.S., Deputy Superintendent, Trigono-metrical Survey of India, with a Dallmeyer photoheliograph giving an image of theSun nearly 8 inches in diameter. In the process adopted at Dehra Dun bromo-iodizedcollodion has been used in connexion with iron development.

The Mauritius photographs were taken under the superintendence of Dr. C.Meldrum, Director of the Royal Alfred Observatory, Mauritius, with a Dallmeyerphotoheliograph, giving an image of the Sun about 8 inches in diameter. At theMauritius Observatory both wet and dry processes have been used, bromo-iodizedcollodion having been used with iron development, and bromo-iodized gelatine dryplates with alkaline development.

Photographs of the Sun were taken at Greenwich on 199 days and Indianphotographs on 128 days with Mauritius photographs on 36 days have been receivedfrom the Solar Physics Committee to complete the total of 363 days for which thereare either Greenwich, Indian, or Mauritius photographs of the Sun available formeasurement in 1886.

The first column on each page contains the Greenwich Civil Time at which eachphotograph was taken, expressed by the day of the year and decimals of a day,reckoning from Greenwich mean midnight January Id. Oh., and also by the dayof the month (civil reckoning), which latter is placed opposite the total area ofSpots and Faculse for the day. The photographs taken in India are distinguishedby the letter I, and those taken in Mauritius by the letter M.

The second column contains the initials of the two persons measuring thephotograph ; the initial on the left being that of the person who measured thephotograph on the left of the centre of the measuring instrument, and that on theright being that of the person who measured on the right of the centre.

The following are the signatures of those persons who measured the photographslor the year 1886 :—

E. W. Maunder - - M S . Phillips - - - SPH. P. Hollis - - H Á. E. Pilkington - - EPJ . Hawton . . . J H

MEASURES OF PHOTOGRAPHS OF THE SUN. vii

The third column gives the No. of the group, and the letter for the spot. Thegroups are numbered in the order of their appearance.

The next two columns give the Distance from the Centre of the Sun in terms ofthe Sun's Radius, and the Position-Angle from the Sun's Axis, reckoned from theSun's North Pole in the direction щ /, s, p, both results being corrected for theeffects of astronomical refraction. .

'The measures of the photographs were made with a large position-micrometer»specially constructed by Messrs. Troughton and Simms for the measurement ofphotographs of the Sun up to 12 inches in diameter. In this micrometer thephotograph is held with its film-side uppermost on three pillars fixed on a circularplate, which can be turned through a small angle, about a pivot in its circumference,by means of a screw and antagonistic spring acting at the opposite extremity of thediameter. The pivot of this plate is mounted on the circumference of anothercircular plate, which can be turned by screw-action about a pivot in its circum-ference, 90° distant from that of the upper plate, this pivot being mounted on acircular plate with position-circle which rotates about its centre. By this meanssmall movements in two directions at right angles to each other can be readilygiven, and the photograph can be accurately centred with respect to the position-circle.When this has been done, a positive eye-piece, having at its focus a glass diaphragmruled with cross-lines into squares, with sides of one-hundredth of an inch (formeasurement of areas), is moved along a slide diametrically across the photograph,the diaphragm being nearly in contact with the photographic film, so that parallax isavoided. The distance of a spot or facula from the centre of the Sun is read offby means of a scale and vernier to 1-250th of an inch (corresponding to O'OOl of theSun's radius for photographs having a solar diameter of 8 inches). The position-angle is read off on a large position-circle which rotates with the photographic plate.The photograph is illuminated by diffused light reflected from white paper placedat an angle of 45° between the photograph and the plate below.

The following is the process of measurement of a photograph :—By means of thescrews attached to the plates carrying the pillars which hold the photograph, theimage of the Sun is centred as accurately as possible by rotation. The position-circle is then set to the readings 0°, 90°, 180°, and 270° m succession, and the scalereadings taken for the two limbs. The scale being so adjusted that its zero coincideswith the centre of rotation of the position-circle, the mean of. the eight readings forthe limb gives the mean radius of the Sun directly.

Q-BKENWIOH OllBEttVATIOJSB, 188(i. (Ь)

viii INTRODUCTION то GREENWICH SPECTKOSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.

At the principal focus of the photoheliograph are two cross-wires which serve todetermine the zero of position-angles on the photograph.

The zero of the Dallmeyer Photoheliograph, employed at Greenwich, has beendetermined throughout 1886 by the measurement of a plate which had been exposed tothe Sun's rays twice, with an interval of about 115 seconds between the two expo-sures, the instrument being firmly clamped. Two images of the Sun, overlapping eachother by a little more than the fifth part of the Sun's diameter, were therefore producedupon the plate, and the exposures having been so given that the line joining thecusps passed through the centre of the plate, it was easy to measure with the position-micrometer the inclination of the wires of the photoheliograph to the Sun's path, and asmall correction for the inclination of the Sun's path was then applied. The followingtable gives the correction for zero of position of the photoheliograph for the mean ofthe two wires as thus determined :—

Date,Greenwich Civil Time.

1885, December

1886, January

February

March

April

June

July

September

October

November

December

1887, January

h

10. 12

12. II

6. IO

24. ii

17. ID

б. II30. n

4- ID

28. IQ

20. IO

7.12

i. ii

13."

4.11

30. 11

17.11

Correction for Zero.

0 /

+ 0.17+ 0.53+ о. 14

- о. 4

- о. 7

- о. 8

-f 0.44

+ о. з

+ 0. II

+ 0. 6

4- о. 51

+ 0. 42

+ о. зо

+ о. 6

- 0-43

— I. О

MEASURES OF PHOTOGIIAPHS OF THE SUN. ix

It was found on October 4 that thé tube to which the wire-frame is attached hadbecome loose, and readily permitted a small motion of the wire-frame. The tube andwire-frame were firmly fixed in their places on October 5, before any photographswere taken.

In the use at Greenwich of the Dallmeyer Photoheliograph the position-circlehas usually been set to some convenient reading near that for zero, so that the wiresare respectively very nearly parallel and perpendicular to the circle of declination, anda correction for zero of position of the photoheliograph for the mean of the two wireshas been applied to the zero of the position-circle of the micrometer. The readings ofthe position-circle in 1886 have been as follows :—

From 1886, January 1 . . . 355°'6October 1 . . . 855°-7November 16 - - - 356°'4

The correction for zero of'position of the photoheliograph adopted for any date hasbeen the mean of the determinations of that zero made next before and next after thatdate. The zero of the position:circle of the micrometer has been determined from thereadings of the position-circle for the four extremities of the two wires. The resultingcombined correction is applied to all position-circle readings for spots and faculœ, so as.to give true position-angles.

In the use of the Photoheliographs at Dehra Dun and in Mauritius the position-circle has always been set to the zero as determined by allowing the diurnal motion tocarry a spot or the Sun's limb along the horizontal wire, and the accuracy of theadjustment has been tested at short intervals. No correction for zero of the photo-heliograph has therefore been applied for the reduction of the photographs taken inIndia or1 in Mauritius.

The unconnected distance from the Sun's centre for spots and faculœ is read offdirectly to l*250th of an inch by menns of a scale and vernier, the zero of the scale ofthe new micrometer being adjusted to coincide with the centre of the instrument.

Two sets of measures of the Sun's limb and of spots and faculté on each photographhave been taken and the mean of the two sets adopted.

No correction has been applied to the photographs on account of distortion.

The correction for the effect of refraction has been thus found, the Sun's imagebeing assumed to be sensibly an ellipse. The refraction being sensibly с tan г where

с = sin Ы"'5 = дщ nearly, and z is the apparent zenith distance, we shall have—

Vertical Diameter l — с вес* г _ , , з" I - с t a n гHorizontal Diameter l —

(b) 2

x INTRODUCTION то GREENWICH SPECTROSCOPIO AND PHOTOGRAPHIC RESULTS, 1886.

and thua the effect of refraction will be to diminish any vertical ordinate y by thequantity с tan2 г. Resolving this along and perpendicular to the radius vector r,and putting v for the position-angle of the vertex, we have for 8 r and 8 0, thecorrections to radius vector and position-angle for the effect of refraction—

<ч ^ •> •> /n \ о. ч 1 + cos 2 (0—v)g r =s + с . tan'' г x r. cos2 (0 — v) = + c . tan- z x r x —! ^ -,

g в = - c . tan2 z . sin (0 - t>) . cos (0 - u) = - c . tan2 г sm 2 (? "Д

The quantity 8 r thus found is the correction, on the supposition that ahorizontal diameter of the Sun is taken as the scale. But, as the mean of twodiameters at right angles has been used, the scale itself requires the correction*T> . 4. 2 T> i i l + cos2(00— v) . l + cos2(0„ + 90o— v) \ • , -r, , .,« R = -f c. tan2 z x R x \\ — «p-2 -+— Чг1 '- \= + £ c R . tan" г,

where R is the Sun's mean radius and 00 , 00 + 90° the position-angles of the twodiameters measured. Thus the final correction to r becomes—

g r = + с . tan2 z x r x ?o s 2jf-u ).

The quantities c tan2 г, — g , and g have been tabulated for use

as follows, с tan3 z being expressed in circular measure and in arc for application todistances and position-angles respectively :—

с tan2 г.

z.

0

8o

79

78

77

76

75

74

73

71

7i

In CircularMeasure.

•0089

•0073

•0061

•0052

•0045

•0039

•0034

•0030

•0026

•0023

In Aro.

,

31

*5

21

18

15

13

ill

10

9

8

ï.

о

70

69

68

67

66

65

64

63

62

61

In CircularMeasure.

•0021

•0019

•0017

•OOI5

•OOI4

•OOI3

•OOI2

•ООН

•ooio

•0009

In Arc.

,

7

6i

6

Si

5

4l

4

4

3

3

Z.

О

6o

58

*6

54

52

5°

45

4°

30

In CircularMeasure.

•0008

•0007

•0006

•0005

•0005

•0004

•0003

•O002

•oooi

In Arc.

,

3

2

2

2

2

I

I

I

О

MEASURES OF PHOTOGRAPHS OF THE SUN.

Factors for Refraction.

в— V

о

О

5IO

Ч2O

*530354045So556o6570758o8590

e— «

0

180185190195200205210

215

220

22S

230

«3524045250255260265270

Sin 2 (в — Г)

— 2

•oo

- -09

- 47

- <Z

5- '3*- -38- 43— 47- 49- '5°- 49- 47- 43- -38- -32- '25- 47- -09— -oo

Cos 2 (e— D)г

J, -50+ 49+ 47+ 43+ -38+ -32+ -25+ -17+ -09

•oo

- -09- ч?- -25- -32- -38- 43- 47- 49- 'So

в — v

0

95IOO

105IIO

"5120

i*5130135140HS150155160165170175180

e— «

0

275280285290295300 •3053103>532032533°33534°345350355360

Sin a (ö — r)з

+ -09+ -17+ -25+ -32+ -38+ 43+ 47+ 49+ -50+ 49+ 47+ 43+ -38+ -32+ -25+ -17+ -09+ -oo

Cos 2 (9 — 02

- 4947

- 43- -38- '32

- -25

- 47

- -09•oo

+ -09+ -17+ -25+ -32+ -38+ 43+ 47+ 49+ -50

The position-angle of the Vertex v is readily taken from a globe.

The distance from centre in terms of the Sun's radius given in the fourth columnis then readily found by dividing the measured distance r0, as corrected for refraction,by the measured mean radius of the Sun, R ; and the Position-Angle from the Sun'sAxis given in the fifth column is obtained by applying to the Position-Angle (fromthe N. point) corrested for refraction the Position-Angle of the Sun's Axis derivedfrom the " Auxiliary Tables for determining the Angle of Position of the Sun's Axis,and the Latitude and Longitude of the Earth referred to the Sun's Equator," byWarren De La Rue, F.R.S.

The sixth and seventh columns give the heliographic longitude and latitude of thespot, which are thus computed.* Let r be the measured distance of a spot from thecentre of the Sun's apparent disc, JÍ the measured radius of the Sun on the photograph,(/j?) the tabular semidiameter of the Sun in arc, and p, p' the angular distances of a

* Researches on Solar Physics : Heliographical Positions und Areas of Sun Spots observed tviththe Kew Photoheliograph during the years 18C2 and 1803, by W. De La Rue, B. Stewart, andB. Loewy. Phil. Trans. 18G9.

xii INTRODUCTION то GREENWICH SPECTROSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.

spot from the centre of the apparent disk as viewed from the Sun's centre and from theEarth respectively. Then we have —

тP = -ft (•#) ; and sin (p + p'} = -д,

whence p = sin"1 -5— p.

Log sin p and log cos p as computed from this formula are given in " Tables for theReduction of Sokr Observations No. 2," by Warren De La Rue, F.R.S. Then, if D,X are the heliographic latitudes of the Earth and the Spot respectively, referred to theSun's Equator, and L, l the heliographic longitudes reckoned from the ascending nodeof the Sun's Equator on the ecliptic, and x the position-angle from the Sun's axis, wehave by the ordinary equations of spherical trigonometry —

sin Л — cos p sin D + sin /o cos D cos x

sin (L — /) = sin x sin P sec X.

The quantities L and D are derived from Warren De La Rue's Auxiliary Tablesbefore referred to, in the computation of which the following formula have beenused —

tan L = cos I tan (© — N)sin D = sin I sin (© — N)

where I is the inclination of the Sun's Equator to the ecliptic, N the longitude of theascending node, and © the longitude of the Sun.

The position-angle x is given by the formula —

X = P + G + H

where P is the position-angle from the north point of the Sun, and G and H twoauxiliary angles given by the formulae —

tan G = tan ш cos 0tan H = tan I cos ( 0 — N)

where ш is the obliquity of the ecliptic.

It will be seen that G is the inclination of two planes through the line joining thecentres of the Earth and Sun passing through the poles of the Earth and of theecliptic respectively, and that H is the inclination of two planes through the same lineand the poles of the -Sun and of the ecliptic. The values assumed for I, N, w in thecomputation of the Tables are 7° 15', 74°, and 23° 27Л5 respectively.

The Heliographic Longitude of the Spot is found from /, the Heliographic Longitudefrom Node, by subtracting the Reduction to Prime Meridian, which is the Longitude

MEASURES OF PHOTOGRAPHS OF THE SUN. xiii

of the Node at the epoch of the photograph, referred to the assumed Prime Meridian,the latter being the meridian which passed through the ascending node at the epoch1854P0. The period of rotation assumed is 25*38 days.

The measures of areas given in the last three columns were made with a glassdiaphragm ruled into squares, with sides of one hundredth of an inch, and placednearly in contact with the photpgraphic film. The integral number of squares andparts of a square contained in the area of a spot or facula was estimated by theobserver, two independent sets of measures being made by two observers. The mean ofthe two sets of measures has been taken for each photograph. The factor for convertingthe areas, as measured in ten-thousandths of a square inch, into millionths of theSun's visible hemisphere, allowing for the effect of foreshortening, has been inferredby means of a table of double entry, giving the equivalent of one square for differentvalues of the Sun's radius, and for different distances of the spot or facula from theSun's centre, as measured by means of the position-micrometer.

The individual spots in a group have in some cases not been measured separately,but combined into a cluster of two or three small spots close together, the position ofthe centre of gravity and the aggregate area of the cluster being given. The actualnumber of individual spots is usually stated in the Notes.

§ 15. Ledgers of Areas and Positions of Spot-groups upon the Surfs Disk deduced fromthe measurement of the Solar photographs for each day in the year 1886.

In these Ledgers the daily results for each group are collected together from themeasures of the individual spots and given in a condensed form. The first columngives for each day, on which the group was observed, the Greenwich civil time atwhich each photograph was taken, expressed by the day of the month.(civil reckoning)and the decimals of a day reckoning from Greenwich mean midnight. The secondand third columns give the sums, for each day, of the projected areas of all theumbra and whole spots comprised in the group, the projected area being the area asit is measured upon the photograph, unconnected for foreshortening, and expressed inmillionths of the Sun's apparent disk. The fourth and fifth columns give the sumsfor each day of the areas of all the umbra and whole spots comprised in the group,corrected for foreshortening, and expressed in millionths of the Sun's visible hemis-phere. The sixth and seventh columns give the mean longitude and latitude of thegroup, found by multiplying the longitude and latitude of each separately measuredcomponent of the group by its area, and dividing the sum of the products by thesum of the areas. The last column gives the mean longitude of the group from the"entrai meridian, and is found by subtracting the longitude of the centre of the disk

xiv INTRODUCTION то GREENWICH SPECTROSCOPIC AND PHOTOGRAPHIC RESULTS, 1886.

from the mean longitude of the group. At the foot of these daily results for eachgroup are given the mean areas of umbra and whole spots and the mean longitudeand latitude for the period of observation.

§ 16. Total Projected Areas of Umbrce, Whole Spots, and Faculce, for each day(uncorrected for foreshortening}, Mean Areas of Umbrce, Whole Spots, andFaculce, and Mean Heliographie Latitude of Spots, for each Synodic Rotation ofthe Sun, and for the Year 1886.

This section requires no further explanation.

W. H. M. CHRISTIE

«, April 25.

ROYAL OBSERVATORY, GREENWICH.

SPECTROSCOPIC OBSERVATIONS

MADE AT THE

EOYAL OBSEEVATORY, GREENWICH,

1886,

OBSERVATIONS, 1880. б А

POSITION-ANGLES AND HEIGHTS OF SOLAR PROMINENCES, OBSERVED WITH THE SPECTROSCOPE, AND OBSERVATIONS

POSITION-ANGLES and HEIGHTS of SOLAR PROMINENCES, observed with the SPECTROSCOPE, and OBSERVATIONS of BRIGHTLINES in their SPECTRA, made at the ROYAL OBSERVATORY, GREENWICH, in the Year 1886.

Civil Time commencing at Greenwich Mean Midnight and counting from о to 24 hours is used throughout.

Note.—The position-angles reckoned from the north pole of the Sun's axis in the direction N., E., S., W., N., are given for the twoextremities of the prominence.

The extreme height in seconds of arc is given for each prominence. Where the estimated brightness of any of the brightlines is given, the average brightness of the line has been estimated in terms of the brightness of the corresponding part of thesolar spectrum. The lines are usually fainter at the extremity than at the base. Where the estimated breadth is given, theaverage breadth of the line has been estimated in terms of the breadth of the corresponding dark line in the solar spectrum,except in the case of the bright line D3, the breadth of which is estimated in terms of the dark line C. The bright lines areusually narrower at the extremity than at the base. On each occasion the entire limb of the Sun was examined first on theС line only, and the heights and position-angles of the prominences were determined. If possible a second examination of theentire limb was then made in which the entire spectrum from В to F was examined at each prominence. The first time given forany prominence is the time when it was first seen ; the second time, the time of the second examination.

The " Half-prism " Spectroscope with a train of two " half-prisms " was used throughout. For viewing the prominences andchromosphere the spectroscope is reversed end for end, the slit and eyepiece being interchanged, so that the pencil is incidenton the oblique face and emerges at the perpendicular face of each " half-prism." Thus the breadth of the spectrum-lines,considered as monochromatic images of the slit, is diminished, and greater purity of spectrum is obtained. In order to view aprominence in its just proportions, the breadth can be afterwards magnified by means of a small "half-prism" (direct-vision)placed between the eyepiece and the eye.

A displacement of ï tenth-metre corresponds to a motion in the line of sight of 28-4 miles per second for the С line, of36-1 miles for the Ъ lines, and of 38-4 miles for the F line.Observer M.

Greenwich.Civil Time,

1886.

Position-Angle fromSim's A™.

Height inSeconde of Aro.

D,

Brightness.

D.

Breadth.

474

BEMARKS.

Apr. 27. ii. 26u. 58ii. 24n. 56II. 22

11.42

II. 2O

11.39

II. IO

11.37

40.2544.3246. 749-3755.»02. 17

71. 774. 786.5789.37

43434i41

4853343i2424

43

38

}*•19

19

Straight jet.

Fine bright jet bending over towards the north.

Double jet.

The entire limb of the sun was examined twicewith the slit radial. The limb was too un-steady for any observations of 1474 К and Fto be made.

Apr. 12. 2O

12. 30

12. 15

12. 28

12. l6

12.23

108. 52109. 32114.32Il8. 22

120. 7121. 32

Ч •9

29

29

Ч

24

24

i

A

Straight jet. 12" 28'". This prominence haschanged in shape since it was first seen. Itis still a straight jet, but has spread out at thetop like a palm-tree.

Straight jet.

The limb of the sun was unsteady, makingobservation difficult. On all the three fore-going prominences neither the D nor Ъ linescould be seen distinctly reversed, probably onaccount of the white haze in which thesun was involved, and the unsteadiness ofthe limb ; yet these dark lines of the skyspectrum grew faint close to the sun's limb.1474 K was seen distinctly reversed onthe second prominence ; on the two othersit was not actually reversed, but the darkline of the sky spectrum all but disappearedclose to the limb.

OF BRIGHT LINES IN THBIB SPECTRA, MADE AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR 1886.

GreenwichCivil Time.

1886.

d h mApr. 30. 12. 1 8

1 2 - 3 3

May ï. ii. 2512. 13n. 912. 15

п. ч11.45ii. i6"• 53n. 18ii. 56n. 5612. 2

II. 19

ii. 59II. 21

12. 5

May 3. n. 311.17ii. 5n. 19

May 6. 12. 512. 17

Position-Angle fromSun's Axis.

298. 12300. 2

73-5<575-3182. I91. I

100. 36

109. 26114.41117. 51118. 51122. 46

124. 21

125.41

124.36

126. 21

208. 46

277. 20

123.24

125. 12

126. 2

127. 52

48. 1 849-37

Height inSeconds of Aro.

0

3Í17

17Ч22

Ч

So4829

29

So29

22

22

2б

41

29

29

29

34

1917

D,

i;

17ч

48

29

29

22

41

34

Ьi»

t-

к

H

4

5

...

...

...

...

2

2

F

ti

Ч

ч

48

...

• •

31

29

34

Ч

Brightness.

0

i

I

2

4

1.*,*

è2

i

I

i

D,

i

i

2

*

i

.

s"1í

4i

1*

*

•g4

4

...

...

...

...

A

Л

F

42

i

...

...

...

...

I

Лi

A

Breadth.

С

4

f

«i

£

4,*iS

4'4

èf

è

D,

.

,

I

*i,s,3

4i

iif

1

'g4

...I

...

...

...

...

...I

I

F

...

i

i

i

...

...

i4

ii

i

REMARKS.

Bright straight jet. Not seen on F, D„ D„ u, or1474 K lines with radial slit, but seen on Fand 474 К with the slit tangential.

The entire limb of the sun was examined twicewith the slit radial and tangential from В toF. With the tangential slit, C, Dj, 1474 Кand F could be seen on all the prominences,but neither D„ D, nor the b lines could bedetected on any of them. The chromosphereaveraged 8"'5 in height.

Fine straight jet, not seen in a previous search.

Long, low, and brilliant prominence. TheС and F lines were displaced towards theblue by about ^ tenth-metre, indicating amotion of approach of about ii miles persecond. The b lines appeared to be reversedto a height of about 5".

Fine straight jet.

Not seen on th« F line.

Not seen on the F line.

Small straight jet, not seen in first search. Notseen on the F line.

Not seen on the F line.

Fine jet ; brilliant ; probably a metallic erup-tion. i2h. 5m. A slight displacement wasdetected on the upper part of the prominenceon the С and F lines. On both lines it wastowai-ds the red, and the amount was roughly^ tenth-metre on F, and £ tenth-metre on C,indicating a motion of recession of about9^ miles per second. The prominence hadchanged its shape since the first search, asecond jet having sprung up, forming withthe first jet a complete arch. The aboveobservations of the С and F lines were takenon the first jet. The extreme point of thearch on the second jet was 41" in height.

The entire limb of the sun was examined twicewith the slit radial.

Straight jet.

Straight jet.

The entire limb of the sun was examinedtwice with the slit radial. The chromosphereaveraged 8"-5 in height. The sun was inwhite haze, and its limb was boiling.

A small straight jet. This prominence was theonly one which could be examined on anyother line but C.

П А З

POSITION-ANGLES AND HEIGHTS OF SOLAR PROMINENCES, OBSERVED WITH THE SPECTROSCOPE, AND OBSERVATIONS

GreenwichCivil Time,

1886.

d b m

May 6. 12. 7

12. 8

12. IO

May 7. u. 5012. 19

I I . 5 I12. 21

11.5212. 20

II. 56

12. 5

11.57

12. О

NOV. 4. 12. 48

12.52

13. 19

12. 5413. 2012.5513.24

12.57

12. 58

13. о


J 64. 36 )

t 66.57Í1 88.171 89-42

( 128.17\ 13*. *

48. io49.5060. 4061. 5063. о64. 50

254. 20

257. io .

j 259. io \\ 263. io j( 295. io íl 296. 40 j

1 SÍ'481 56. 2

80.2783. 7

86.4588. о98. 38 )

104.40 )( 123.50 11 »S- S« f( 126.44)\ 128. г\í H5- 30 11 249- o í


С

У/

12

19

79

1722

3124

1712

17

H

24

34

363455

29

'9

19

D.

Il

j н

H31

14

h*

'£*ti

?

...

5

2

F

«

• •*

19...

12

24

Brightness.

С

t

i

1

li

D,

k

i

i

3

í

s è

'g4

...

' ?...

...

...

F

Л

...

i

\

Breadth.

С

i

\

i

li

\

D.

*i

è

i

t

H74К

?...

...

...

F

I

...

2

I

REMARKS.

•

Chromosphere a little higher than usual, andfeathery.

Straight jet.

Fine prominence. Partly detached.

The entire limb of the sun was examined oncewith slit radial, on the С line only. The sunwas in much haze.

Straight jet. Lines 1474 К and F not seen.

Straight jet.

Straight jet;

Bright prominence. This jet, when first seen,•was suspected to be a metallic eruption, fromthe vividness and breadth of the bright С line.The Dj line was seen distinctly bright for 7"on the limb of the sun. The sun was inmuch white haze, and only a brilliant pro-minence could have shown through it.The solar spectrum did not seem morethan three times as bright as the skyspectrum. It was remarkable that, whereasthe D3 line is usually fainter and narrowerthan the С line, in this instance it wasbrighter and about as broad. Both С and Fcould be traced about 2" bright on the sun,the narrow pointed dark line appearing tobisect the bright line. At i2h. ззт. both Dlines were distinctly reversed 5" in height.654 K was seen brightly reversed. Height12 , brightness £ ; breadth half of the dark Сline.

Straight jet.

Faint jet ; could not be observed on any otherline but C.

The entire limb of the sun was examined twicewith the slit radial.

Straight jet. Not seen in second search.

Partly detached. The sun was in much hazeat the second examination. Seen only on theС line.

Bright prominence. Partly detached. TheD„ D„, b„ Ъа lines were reversed 2^" in height.

Sun in haze at second examination. Seen onlyon С line.

Bright straight jet. The sky clouded over beforea second examination could be made.

Bending over towards the North.

Faint jet.

The entire limb of the Sun was examined oncewith the slit radial on the С line and partof the limb a second time on the entirespectrum from В to F.

OF BBIGHT LINES IN THHIB SPECTRA, MADE AT THE ROYAL OBSBRVATOBY, GREENWICH, IN THE YEAR 1886.


1886.

il ii ni

Dec. i. n. i

ч- 3

11.16


1 233- 3°( *3б. 71 246. 71 H«. 7j 3 1 2 . 2 71 3H- о


С

ЧгбЧЧ3434

D.

I* 6

!*}•••

к

...

...

F

17 '

24

...

Brightness.

С

iir

\

A

D,

i

i

•g,

...

F

Л

iTiT

Breadth.

С

i

3;r

»

D,

i3

i

T

...

F

1

I

REMARKS.

Straight jet.

Straight jet.

Faint prominence. Seen on no other line but C.Not seen in fírst search.

The entire limb of the Sun was examined twicewith the slit radial.

OBSERVATION of the SPIÎCTRUM of a Sun Spot made at the ROYAL OBSERVATORY,GREENWICH, in the Year 1886.

SPOT-GROUP, No. 1880.1886, May 6.

A fine group of spots was seen near the centre of the sun, and these, as examined on the С and F lines, showed aremarkable uprush of bright hydrogen. The F line in particular was reversed in places scattered over the entirearea of the group, but it was especially brilliant over the principal spot of the group. Over the nucleus of this spotthe F line was greatly broadened, being quite three times its usual breadth, and being seen both as a dark and as abright line. The dark portion appeared to be displaced about ^ tenth-metre towards the red, corresponding to amotion of recession, or a downward motion, of about 13 miles per second. The bright portion appeared to bedisplaced by about the same amount towards the blue, corresponding to a similar motion of approach, or an upwardmotion. The bright part of the line was in the shape of a crescent, of which the convex side was turned away fromthe mean place of the F line, and towards the violet. In some parts of the spot the F line had a peculiar appearance,the bright line being narrower than the dark line, and lying diagonally across it, inclined to it at a small angle. TheС line was reversed over a more extensive area even than F, but did not show displacement or twisting so well.

Amongst the dark lines observed to be broadened over the spot were the following :—

DI, Ds, Sodium, more than double their usual breadth.b\ Ьг &4 Magnesium \X 4890, 4891, IronA 4918, 4920, do.A 6492, CalciumA 6462, do.Л 6438, do.A 6 i 6 i , do.A 6121, do.A. 6101, do.

DS and 1474 К were not noticeably affected in any way.

The above observations were made by Mr. Maunder with the half-prism Spectroscope mounted on the South-East Equatoreal. The Spectroscope was used in the reversed position, with a train of two half-prisms, giving underthese conditions a dispersion of about 6° from A to H, the spectrum being very pure. A power of about 28 wasused on the viewing telescope.

The number of the spot-group is taken from the Photographic Results.

1886, May 7.The same group of spots was again examined with the Spectroscope arranged as on May 6, but no indication of

reversal of any of the lines was detected, nor were any lines noticeably broadened. Observer : Mr. Maunder.

Double their usual breadth.

MOTIONS OP STARS IN THE LINE OP SIGHT, INFERRED FROM SPECTROSCOPIC OBSERVATIONS

MEASURES of DISPLACEMENT of LINES in the SPECTRA of STARS, MOON, AND PLANETS as compared with those of TERRESTRIALELEMENTS, and CONCLUDED MOTIONS in the LINE of SIGHT, from OBSERVATIONS at the ROYAL OBSERVATORY, GREENWICH,in the Year 1886.

The day specified in the first column is the Civil Day, and the hours and minutes are those of Greenwich Civil Time, commencing atGreemvich Mean Midnight and counting from о to 24 hours.

Note.—The motion corresponding to the displacement actually observed may be inferred from the Concluded Motion by adding theEarth's Motion algebraically.

The " Half-prism " Spectroscope was used throughout. Each " Half-prism " is compound, and is composed of a flint " half-prism "(i.e., the half of an isosceles prism, cut by a plane perpendicular to the base,) and a crown prism, cemented on the emergent faceso as to form the half of a direct-vision prism. With one such half-prism a dispersion of about 18 ° from A to H, equivalentto that produced by four flint prisms of 60°, is obtained ; and with a train of two a dispersion of about 80°, equivalent to thatproduced by sixteen flint prisms of 60°. One half-prism has been always employed. The dispersions have been inferred frommeasurements of the distance between b^ and bt as compared with the wavelength measure.

irer- of the micrometer corresponds with one "half-prism" to 10-4 tenth-metres or 375 miles per second for the b lines, and to7-91 tenth-metres or 304 miles per second for the F line.

irev- of the screw for opening the slit corresponds to o-oi inch, or about 10".

The slit lies north and south when the reading of the Position Circle is 6°.

The velocity of light has been taken as 186,660 miles per second, and the distance of the Sun as 92,250,000 miles.

The estimations of displacements have been made by indirect comparison with the comparison-line, except where the contrary isexpressly stated. The displacement is estimated in terms of the breadth of the comparison-line.

The sign + denotes a displacement towards the red or a motion of recession, — a displacement towards the blue or a motion ofapproach.

Date, 1886,GreenwichCivil Time.

d h mJan. 16. 17. 41

17.4417-4-717.50!7. 54'7-5718. ï18. 418. 818. ii

Jan. 1 8. 22. 2822.3122.3522. 3823- 323. 823. 18

Jan. 19. 22. 422. 24

Jan. 27. 1 8. 818. to1 8. n18. 1318. 1518. 171 8. 18

iMMMMMMMMHM

NNNNNNN

MM

MMMMMMM

Object.

Venus»j?»,))», ,

Moon, ,» ?, ,

Procyonî 11 ,

Sirius» ?

Venus

Line.

FFFFFFFFFF

FFFFFFF

FF

FFFFFFF

Widthof

Slit.

O'l COд 50-150

0450O-I5O

0-150

0-1500-150O-I50

0-150

0-150

o* i соw t ^w0-1500-1500-150O'l COw 1 }W

0-1500-150

O'l COw * Э0-150

O"2OI

O-2OI

0-201

0-201O-2OI

0-201O-2OI

Displacement.

Measured.

— О 'O4.itTT

— 0-027— 0-008— 0-058— 0-027— O-O2O—0-008—0-029

o-ooo— O-002

— O'OI Сw vi 5

+ 0-037

+ 0-027— 0-017

+ O'OI2

+ 0-OI5

— O-OO9

— O'O2O

— O-O4I

— O-O74.w ""VT

-0-158

— O-O26

— 0-003— 0-017

— 0-022-0-034

Estimated

_ 1

- A— i— ï_ 1- A- A

оо

ооо

1ттт

- í

_ 1- л

оо

— л_ ^.

Earth'sMotion inMiles perSecond.

-4- I'C~ * 5+ «'S+ !'5

•4- A.'A.~ T T

+ 44

Concluded Motionof Stare in Miles per

Second.

Measured.

— I « -4.* У т- 8-2- 2'4

— i7'6- 8-2- 6-1- -*ч- 8-8

O'O

- 0-6

- 4-6+ п'з+ 8-2- 5'i+ *'i+ 3-1- 4'2

— IO'C•" 5- 16-8

— 22"C1.1, j

— 48-0

- 7'9- 0-9— 5<J

- 6-7- 10-3

Estimated

— 1 1-6

- S'«- 2-9- 19-4- H'5- H1!- 5'8- 2-9

o-oo-o

— I'C1 J

- i-s- i'S

— IO"2

— 1 6'0

— 16*0— 24-0- i-8

o-oo-o

- 4-8- 5-6

REMARKS.

Calculated motion — 6-7 miles per second.

Position Circle, 169°.

The coincidence of the two spectra appearedperfect.

Spectrum bright and fairly steady.Star-line fairly distinct.

Position Circle, 1 86°.

Spectrum very tremulous. Star seenthrough cloud.


Spectrum bright but tremulous. Thelater observations were made under moresatisfactory conditions than the earlier ;the line in the spectrum of Venus beingvery distinctly seen during the lastseven observations.

Calculated motion, — 5-4 miles per second.

AT тнв ROYAL OBSERVATORY, GRHBNWICH, IN тнв YBAR 1886.

Date, 1886.Greenwich

Civil Time.

d li inJan. 27. 1 8. 20

l8. 21

18. 2318.59I9. 2

19. 6

19. 919. 1419. 1819.4119.4619.4919.562O. 10

20. 15

20.3520. 4020. 42

20. 4520.4920.5521. I

21. 4

21. 8

21.1321. 17

21. 21

21. 24

21.27

21.32

21.3521.3721. 40

21. 42

21.45

21.48

21. 50

21. 52

21.5421. 56

21. 58

22. 9

22. II

22. 13

2 2 . 1 5

22. 21

22. 25

22.31

22.35

22.3922.45

22.492 2 . 5 1

22.53

22.55

22.57

22.59

Jan. 28. 12. 2912.3412. 38

12.4112.45

i0

MMыMHMMMMMMMMMMMMMIIHMMMMMMMMMMMMMHMMMMMMMMMMжMMMMMM

MMMMHM

MMMMM

Object.

Venus> >

J )a Pegasi

) >> t) >

a Andromedse

ß Persei> >

a Persei> >

Aldebaran? »

Rigel» ï

y Orionis

ß Tauri> >

8 Orionis> >

< Orionis

f Orionis» »

к Orionis» >

y Geminorum

Sirius) >ï ») )) »

Capella» «» »

ß Aurigas? »

Castor

Pollux'> »

Procy on

Sky» »i *t »> >

Line

FFFFFFFFFFFFFFFF.FFFFFFFFF.FFFFFFFFF'FFFFFFFFFFFFFFFFF

FFFFFF

FFFFF

Widthof

Slit.

rO'2OI

0-201O-2OI

0-154

0-1540-1540-154

0-154

0-1540-154

0-154

0-154

0-154

0-154

0-154

0-154

0-154

0-1540-154

0-154

0-154

0-1540-154

0-1540-154

0-154

0-154

0-1540-1540-154

0-1540-154

0-1540-154

0-1540-154

0-154

0-154

0-154

0-154

0-154

0-154

0-154

0-154

0-1540-154

0-1540-1540-154

0-154

0-154

0-154

0-1540-1540-154

0-1540-154

0454

0-154

0-154

0-1540-154

Displacement.

Measured.

ï— 0-063- 0-054+ O-OO2

— O-O5I

+ o-oo ï— 0-084-0-155- 0-073— o-oo ï- 0439— 0-08 1— 0-140— 0-030+ 0-064+ 0-194+ 0-103+ 0-183+ 0-113+ 0-009— 0-088— 0-071+ 0-109+ 0-026+ 0-08 1+ 0-098+ 0-072+ 0-094— 0-078+ 0-009-0-335— 0-217— 0-032+ 0-006- 0-075— O'l IO— 0-172— 0-106- 0-059— 0-103— O-O2I

- 0-059— O-OI2

+ 0-057

+ 0-058

+ 0-OI4

— 0-065

- 0-094

— 0-I2Ó

— 0-106— o-i io— 0-151

— 0-068— o-oio— 0-016+ 0-016— 0*092— 0-016

— 0-002

+ O-O2I

+ O'OIO

— 0-003

— O-OO7

Estimated.

- 1T

o- A

0

- 1- £0

- i_ Z

T!

+ i+ i+ í+ f+ l

o

+ 1+ A+ A+ A+ *+ if

0— 1- *

то

3.

- %- $- î~ А~4- А

г t+ А

+ f+ 5

_ 9

'í+-t

O


+ 12-4+ 12-4+ 12-4+ 12-4+ 154+ 154+ 16-8+ 1 6-8+ 15-1+ IS ' I+ 16-3+ 16-3+ 12-9+ 12-9+ 13*6+ i3'6+ I3'8+ I3'8+ 127+ 12-7+ 124+ 12-4+ 12-1

+ I2 - I

+ IO-9

+ IO-9

+ 9'5

+ 9'5

+ 9'5

+ 9'5+ 9'5+ 9-5+ 6-3+ 6-3+ 6-3+ 6-3+ 6-3+ 6-3+ 12-9+ 12-9+ 12-9+ 12-9+ n-3+ u'3+ 6-2+ 6-2+ 5'3+ 5'3

+ 44+ 44+ 44+ 44+ 44+ 44


Second.

Measured.

- 19-1— 16-4+ 0-6-27-9— 12-1

- 37'9

-59-5- 37'6- iS ' i- S9'°-41-4- 57-6-24-2+ 3-1+ 42-6+ 18-4+ 427+ 20-7— 10-9-40-5-354+ 20-4- 4-8+ 12-2

+ 174+ 9'8+ l6'5

- 34'6- 8-2

- 111-3- 754- 19-2- 77- 32-3-42-9-58-6-38-5- 24-2-37-6- 127- 24-2-16-5+ 44+ 47- 8-6- 31-0- 39'9+ 32-1+ 26-0-387- S I 'S

- 25-1- 74- 9'3+ 0-5- 324- 9'3

- 0-6+ 6-4+ 3-0- 0-9— 2-1

Estimated

- 9-6- 6-9

O'O— 19-0- 12-4- 34'3-387-31-8- 154- 49'6-43-1-414- 28-2+ o-i+ 16-5+ 9'°+ 26-5+ 8-3— I3'6— 40-1-357+ 13'6- 6-1+ 7'3+ 7'3+ 4'*+ Ч'2

- 27-3— 10-9-75-I— 62-0- 25-9- 9'5-35-8-35-8— 50-0-457— 26-0- 39'i- 12-9- 194- I9-5+ 6-8+ 3'5- 6-3- 37-6-44-1+ 37-5+ 26-6-49-0- 54'5

- 3°7— 1 ГО

— 1ГО

+ 2-2

— 26-3

- 44

REMARKS.

Spectrum very faint and tremulous.Measures made with great difficulty.

Spectrum fairly steady.

Spectrum fairly bright and steady. Defi-nition fair.

Spectrum fairly bright and steady. Defi-nition fair.

Spectrum bright but tremulous. Star-lineseen fairly well.

Spectrum bright but tremulous. Star-lineseen very well.

Spectrum bright and steady. Star-lineseen fairly well.

Spectrum somewhat faint and tremulous,but star-line seen fairly well.



Spectrum faint and tremulous, but star-line seen fairly well.

Spectrum bright and steady. The star-lineis broad, diffused and difficult to bisect.It was seen fairly well on this occasion,and the difficulty of bisection was duesimply to ite nebulous character.

Direct comparison showed a displacementof about half the breadth of the com-parison-line towards the blue, equivalentto a motion of approach of 39-1 milesper second.

Spectrum bright and steady. The star-line,which is rather faint, was seen withunusual distinctness.

Spectrum faint and tremulous. Star-lineill-defined.

Spectrum tremulous. Star-line very ill-definod.

Spectrum bright and steady. Definitiongood. Star-line seen well. Displacementevidently large and towards the blue.

Spectrum bright and steady. Definitiongood. But the star-line from ite peculiarcharacter was difficult to observe. Thedisplacement was evidently very small.


The sky spectrum was seen very well. Thecoincidence of the two spectra appearedperfect.


MOTIONS OF STARS IN THE LINE OF SIGHT, INFERRED FROM SPECTROSCOPIO OBSERVATIONS

Date, 1886.GreenwichCivil Time.

d b mJan. 28. 2i. 59

Feb. 1.18.4918.55

19- 319. 819.13if). 1819.2319. 2819-4319.4819-5520. ï20. 132O. 21

20. 252p. 30

20.33

20.39

2O. 42

2O. 48

Feb. 2. 12. о12. 4

12. 712. II

12.15

March 3. 19. 55!9-59

20. 10

20. 13

2O. 2O

2O. 24

20. 20

2O. 29

2O. 40

20.43

20. 52

20. 56

21. О

21. 4

21.3721. 41

21.4321.4521. 46

21.472i. 562i. 5822. О

22. 2

О

N

Mil

MMMMMMMMMMMM

HM

MMMH

MHMMM

MM

HMMMMHHMMM

MMMMMMMMMMMM

Object.

Procyon

л Pefirasi . . .» »

•y PecasiJ )

a Andromedffi .> »

ô Arietis .. .

ß Perseií >

a Persei» >

Rigel> >

•y Orionis» ?

/î Tauri» >

y Geminorum .í >

Sky> >> »> »5 J

Rigel5 )

y Orionis

ß Tauri» >5 >

» 5

Aldebaran» »

Capella» »

ß Aurigse> »

Sirius» )9 J

> »ï >» »

Procyon> J) >) 5

Line.

F

FF

FFFFFFFFFFFF

FF

FFFF

FFFFF

FF

FFFFFFFFFF

FFFFFFFFFFFF

Widthof

Slit.

0-154

0-1040-104

0-1040-1040-1040-1040-1040-1040-1040-1040*1040-1040*1040-104

0-1040-104

0-1040-1040-1040-104

0-1040-1040-1040-1040-104

0-1900-190

0-1900-1900-1900-1900*1900-1900-190O'igo0-1900-190

0-1900-1900-1900-1900-1900-1900-1900-1900-1900-1900-1900-190

Displacement.

Measured.

r+ O-OO2

— 0-017

-0-145

+ 0-025

+ 0-03I

— 0-228—0-171—0-188-0-253-0-037—0-038—0-005—0-032+ 0-071+0-055

+0-138— 0-056

—0-029—0-041—0-168—0-048

+ 0-024+0-005+ 0-026— O-OI2

+ O-OIO

+ 0-078

+ 0-I55

+ O-O40

+ 0-II9

— 0-090

+ o'o6o—0-086— 0-056+0-198+0-087— ОЧО2

-0-144

— 0*170

— 0-106+0-035-0-057—0-230—0-064—0-060—0-138-0-149-0-034-0-073— 0-076

Estimated.

о

-t- î

0

I J

— *

- A

+ I

+ f

~ т

— 1-

- 1

+ i

+ ï

+ А+ f

II+ \ -

+ Л

~ ЗГ- А

'-f

Earth'sMotion inMiles per

Second.

+ 47

+ II-2

+ II-2

+ I5-0

+ 1 5'°+ 147+ H7+ 18-4+ 184+ 17-1+ i7'i+ 15-6+ 15-6+ 137+ 137

+ 14-6+ 14-6

+ 4-8+ 4-8+ 10-9+ 10-9

+ 1 6-0

+ 16-0

+ 17-8+ 17-8+ 18-4+ 18-4+ 18-4+ 18-4+ 18-5+ 18-5+ 17-1+ 17-1

+ 16-8+ 16-8+ 12-6

+ 12-6

+ 12-6

+ 12-6

+ 12-6

+ 12-6

+ I3-6

+ I3-6

+ I3-6

+ I3-6


Second.

Measured.

- 4'i

16-1- 55-2

- 74- 5-6-83-9-66-7-75'5-95-2- 28-4-28-7- 17-1-25-3+ 7'9+ 3-0

+ 28-2- 307

-23-6- 27-2— 61-9-25-5

+ 7'3+ 1-5+ 7'9- 3'6+ 3-0

+ 77+ 314

- 57+ 18-3-457— O-2

-44'5- 354+ 41-6+ 7'9— 48-1— 60-8

-68-4-49-0— 2-0

- 29'9— 82-4- 32-0-30-8- 54'5- 58-9- 23-9-35-8- 367

Estimated.

- 47

-15-8- 344

+ 3-6- 15-0-457— 42-6— 41-6- 494— 32-6-287— 20-2

- 3I'I

+ 4'9- 44

+ 21-2

— 29-2

-24-1— 26-4-41-9— 26-4

+ 5'3+ 12-3

- 9'3+ 10-5-46-7- 9'9- 397-43'9+ 24-0+ 2-8-454- 59'6

- 59'3— 50-8- 4'i— 29-6- 55'i-40-9-38-1-46-6- 56-1- 34'9- 39'i- 34'9

REMARKS.

Position Circle, 1 8 6°.

Star low. Spectrum faint and verytremulous. Definition bad. Measuresrough.

Spectrum faint and tremulous. Definitionbad. Star-line seen with great difficulty.

Wind high. Spectrum fairly bright buttremulous. Definition poor.

Wind very high. Spectrum tremulous.Definition bad.

Spectrum fairly bright and steady. Defini-tion fair.

Spectrum fairly bright but tremulous.Definition poor.

Wind very high. Spectrum bright buttremulous. Star-line seen with greatdifficulty.

Wind very high. Spectrum fairly brightbut tremulous. , Definition bad. Star-line seen with great difficulty. Measuresrough.

Wind very high. Spectrum bright buttremulous. Definition bad.

Wind very high. Spectrum bright buttremulous. Definition bad.




Spectrum fairly bright and steady butdefinition poor. Star-line seen withgreat difficulty.

Spectrum faint but fairly steady. Defin itionpoor. Star-line seen with great difficulty.

Spectrum fairly bright and steady butdefinition poor.

Spectrum bright and fairly steady, butdefinition poor. Star-line faint.

Spectrum bright. Definition fair. Thedisplacement was distinctly towards theblue. Star line seen fairly well.


Star in light cloud. Spectrum faint andtremulous. Definition bad.


AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR 1886.

Bate, 1886.Greenwich

Civil Time.

•чг J h mMar. 4. i2. о

12. J

12. IO

12. 15

12. 2O

Mar. 1 7. 20. o20. IO

2O. 15

20. 25

20. 38

2O. 42

21.3521.38

21.44

21. 46

21.47

21.49

21. 50

22. 3

22. 7

22. IO

22. 13

Mar. 23. 2i. 821. 15

22. 27

22.33

2 2 . 5 5

гг. oЧ- 523. IQ

Mar. 24. i2. io12. 1412.17

April 6. 2i. 3021. 40

22. 15

22. 25

22. 40

22. 50

23. o23. 523- 17

2 3 - 2 523.40

23.45

Apr. 22. 22. 45

Obs

erve

r.

I

MMMMM

MMMMMMMMHMMMHMMMM

NNNNNNNN

NNN

NNNNNNNNNNNN

N

Objeot.

Sky» ïj ?1 1» >

Aldebaran» >

Capella> »

a Orionis

Pollux'ï »

Moon.) »> »» »? )

Mars> i» »i >

Capella

Pollux'» »

]Marg» »> »» »

Sky> 9

> )

Capella> >

Procyon> j

Castor> >» >

Pollux!.'.> >

Marsï »

Mars

Line

FFFFF

blbihbibtЙ4

bibibibibiblbibibibibi

bibibibibibibibi

bibibi

FFFFFFFFFFFF

F

Widthof

Slit.

r0-190049004900-1900-190

0-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-1530-153

0-1900-1900-1900-1900-1900-1900-1900-190

0-1900-1900-190

0-2180-2180-2180-21 8

0-2180-2180-2180-2180-21 8

0-2180-2180-218

0-137

Displacement

Measured.

г

+ 0-007+ 0-030+ O-OOI

+ О-ОО7— o-oii

+ 0-080+ 0-085+ 0-205+ 0 - I I O

+ 0-182+0-094— 0-028-0-039— o-oii—0-008— 0-016+0-025+ 0-008+ 0-058— 0-014+0-054+0-017

—0-013— 0-009— о-ооб-0-031— о-обб— o-oiS+ 0-010

+ 0-010

—0-009— o-oio— o-oo i

+0-052+0-057—0-036+ 0-010

+ 0-010

—0-031+0-041+ O-O2I

— 0-042— 0*040+ 0-005+ O-OIO

+O'oo6

Estimated

+ i+ 1+ I

i t+ *

-t

lí+ A

0

оо

~~ 8-ï.о0

+ i+ t

+ А+ л+ I+ А- i- i

о+ А

0


+ 174+ 174+ 16-9+ 16-9+ 17-8+ 17-8+ 16-8+ 16-8

+ 1 6-6+ 16-6+ 174+ 174

+ I5-I+ I5-I+ I7-5+ 17-5+ 1 8-0+ 1 8-0+ 1 8-0+ 1 8-0+ 18-1+ 18-1

Concluded Motionof Stars in Miles per

Second.

Measured.

+ 2-1+ g''+ 0-3+ «'I

- 3'3

+ 12-6

+ 14-5+ 60- 1

+ 24-4

+ 50-S

+ I7-5

- 27-3

- SI 'S

- 4'1- 3-0_ 6-0+ 9'4+ 3-0+ 21-8

- 5-3+ 20-3+ 6-4

- 21-5— 2O-O

— I9'6

— 29-0

- 24-8

- 6-8+ 3-8+ 3-8

- 34- 3-8- 0-4

+ 0-7+ 2-2— 28-4- H'S— 15-0-27-4

" S1— 1 1-6— 30-8- 30-2+ i-S+ 3-0

+ 1-8

Estimated.

+ 24-9+ 24-9+ 55-6+ 37-5+ 457+ ЗЗ'О-29-5-48-5

+ 317- 6-4+ 31-7+ 6-4

- 1 6-6- 1 6-6- 17-4— 30-2— 25-6- 10-3

o-oo-o

- 0-4- 0-4- 29-3- 14-5- 15-0-27-8- 8-2— I2'I

- 29-9- 29-9

o-o+ 3-0

O'O

REMARKS.

No want of coincidence between the twospectra could be detected.


Spectrum faint and tremulous. Definitionpoor. Star-lines seen with difficulty.

Spectrum bright but tremulous. Definitionpoor. Star-lines seen with difficulty.

Spectrum fairly steady ; bi could not bedistinctly seen, but 64 was very distinct.

Spectrum faint but fairly steady. Star-linefaint but seen fairly well now and then.

The coincidence of the two spectra ap-peared perfect.

Spectrum faint. The line in the spectrumof the planet was faint, but fairly welldefined. Calculated motion + 2-0 milesper second.


Spectrum tremulous. Star-line very faint.

Star-line seen fairly well at intervals.Mist rendered measurement difficult.

The line in the spectrum of the planetwas faint. Calculated motion + 3-3miles per second.




Spectrum tremulous.

Star-line diffused and ill-defined.

Spectrum tremulous. Star-line faint.

Calculated motion + 5-6 miles per second.


Spectrum tremulous. The line in thespectrum of the planet faint and in-distinct. Measure rough. Calculatedmotion + 7-3 miles per second.


QBEBNWICH OBSERVATIONS, 1880. 5 В

10 MOTIONS OF STABS иг тнв LINB OP SIGHT, INFERRED FROM SPEOTROSOOPIO OBSERVATIONS

Date, 1886.

Greenwich

Civil Time.

d h mApr. 30. 2i. 30

21.38

22. 5

22. 13

22. 4.O* т22.45

23. 2O

23.25

23. 4523-50

Мяу ï. 2i. о21. IO

21. 25

21.35

21. 50

22. 0

22.35

22-45

23* 5

23.1523.3023.40

23.50

23.552. 0. 15

0.25

May 3. lo. IDIQ. 15IO. 2O

to. 2510.30

May 3. 23. 4023.50

4. o. oo. 50. 10

o. 15o. 30o. 40I. O

I. IO

I. 20

1.30

1*45»•552* 52.152. 20

2.25

O

NNNNNNNNJJ-N

MM

MMMMHMMMMMMHuM

MMMuH

MMMHMHMHMH

MM

uMMHMM

Object.

Regulus

Mars,

B Leonis

Spica —

Arcturus

Procyon

PolluxJ J

Castor

ß Ursas MajorisJ ,

a Ursas Majoris, ,

y Urais Majoris5 J

eUrese Majoris

( Ursas Majorisf j

Sky

,,1 1, ,

Regulus, J

Mars

9 >

ß Leonis

y Virginie

o Virginie

Arcturus, ,

o Coronae Bor.t », ,, ,

Line.

FFFFFFFFFF

FF

FFFFFFFFFFFFFF

FFFFF

FFFFFFFFFF

FF

FFFFFF

Widthof

Slit.

O'I7Cw * / 30-175

0*175

0-175O'I7Cw * / 30-175O"I7Cw * / j0-175O'I7C*"- */ 50*175

о'обс0-065

o"oÓ50-0650*06 с0*0650-0650-0650-1400-1400-1400-1400-1400-1400-1400-140

O'I4.O

0-140

0-140

0-140

0*140

о* н сU 1JJ

0*135о'МСw * 330-1350-1350-1350-1350-135О" ШСu • 330-135

0-1350-1350-1350-1350-1350-1350*1350-135

Displacement.

Measured.

+ 0*00 1— 0*001

+0-017+0-017— 0*067—0-044— O'OZO

—0-051— 0-041—0-066

+ O'OI2

—0-284

— 0*078V W f U

— 0*112

+ O"I l6

+0*154+ O-II2

+ 0-009

— 0-II2

— O*2O4

— 0*015

+ O'IOO

+ 0*046

— 0*017

+ 0-075

+ 0-023

— 0-021

+ 0-036

+ O-OOI

+ O-OO5

+ O'IOO

+0*027— O'OZI

— 0*056+0*009—0*027+ 0*025—0*003— O'HOЧ/ 1 JW

—0*089

—0-196— o-ioi

—0*221— O*2I2

— 0-065

— 0-141

+ 0*010

-0-145

Estimated.

о0

+ A+ А- í-í- A30

_ ..

+ Aт^ То

— ^— 1+ 4

+ |

+ 10

— i

- í-A+ i+ 1+ 4.+ rV

+ A2+ A- ATo- i

O

- rV+ A

o_ 11a

I f

- t"~~ *í

— ío

— 1


+ I7'2-Г l j л

+ I Ч "б

+ 13-6+ f."!' 3 /+ 57+ 4-8

+ 16-6+ 16-6

+ l6"QT IU у

+ i6*9+ 16*4.т »« ч-+ 16-4+ 12-7

+ 12-7+ 117+ 117+ 117+ 117+ 9'5+ 9-5+ 8-4+ 8*4

+ I7-C— * ï 3

+ 14-2

+ io'3+ 10*3

+ 6*6+ 6-6

+ 5'5+ 5'5+ 0-7+ 0-7+ 07+ 0-7


Second.

Measured.

— l6"Q?- i7'5+ S'i+ 5'i— 34'°— 27-0— I I -8— 21*2

— 17*2

— 24*8

— I3'O— 102*8

— 40*6

- 5°'9+ 18-0*-f- iu .y

+ 30-4+ 21*3— IO*O

-457-737-16*3+ 18*7+ 4'5— 14*6+ I4'4- !'4

— q-i- 6-4+ 10-9+ 0-3+ »'S

+ iz'9- 9'3- 6-4T- 17*0+ 27- 8-2- 6-6- 15-1— 4.Q-8T" u

- 37'3

-66*1-55'S

-72-6- 69'9— 20-4-43;5

-447

Estimated.

— 17*2- 17-2

+ 4'o- ЗЗ'б

— Q'77 /

-217

- 18-1— 24-8

— O'C7 3

— 4.C-I

-45-1

+ 18-9+ 10-8- 127-41-0

- IÍ-Í+ 17-6+ 8-0- i3'9

+ 0*4

+ IQ'4.T^ * 7 T

— 10*1— 7*4./ т- 147

0*0— 7*4- 6-8- I4'2

— 4.7*2T/ *

- 34'9

-55-8- 5°'9

-64-6-64-6— 19-2-37*6- 0*7-37-6

REMARKS.

Calculated motion + 7-8 miles per second.


Spectrum faint and very tremulous. Bi-section difficult and uncertain.

Spectrum and star-line faint. Measuresmade with great difficulty.

Spectrum faint but definition good.

Spectrum faint. Measures made with greatdifficulty.

Spectrum fairly bright, but star-line veryfaint and difficult to see.

Star-line very ill-defined.

Star-line very ill-defined.

Spectrum bright and definition fair, butstar-line broad and diffused.


The coincidence of the two spectraappeared perfect.


Spectrum bright but tremulous. Star-linediffused but seen fairly well.

Spectrum bright and steady, definition fair.Calculated motion + 8*0 miles persecond.

Spectrum fairly bright and steady. Star-line very diffused but seen fairly well.

Spectrum fairly bright and steady. Star-line broad and diffused but seen fairlywell.

Spectrum bright but very tremulous. Alarge displacement towards the blue wasmanifest.

Spectrum bright. Definition good.

Star-line very difficult to bisect.


AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YBAR 1886. 11


Civil Time.

d h mMay 6. 22. 39

22.44*3-5°23.59

May 13. 2i. 3021.4522. 10

22. 30

22. 50

2 2 . 5 5

23. о*3- 523. io23. 3023.50

14. o. 5o. 150.25o. 30

0.45

May 15. 2i. 2021. 30

21. 4. Ç* * • ТЭ22. О

.

22. 15

22.2523. je23.40»3-4523.502 3 - 5 5

May 18.22.3522. 4022. 58

23. 32 3 . 2 5

23.30

2? CO* J- 3W

23-5323.56

23-59

May 20.22. 1522. 25

•22.45

22. 50

23. *5

23. 28

О

NNNN

MMMMMMMMMMM

MHMM

M

MMMM

MMMMM11il

NNNNNNNNNN

NNNNNN

Objeot

> >

Arcturus) )

Arcturus» »

о Canum Ven. .; >

Moonj »

» >

> )

9 ,

ß Libne» >

a Corones Bor.> 9

ß Serpentis ...» >

y Herculis

» 9

) 1

ß Leonis! >

» »

> 1

> >

9 >

Regulus) »

Spica? »

Arcturusï >

> »> ï> >

AroturuB1 1

a СОГОПЮ БОГ.

t t

) >

Line.

FFFF

FFFFFFFFF

•FF

FFFF

F

FFFF

FFFFFFF

FFFFFFFFFF

FFFFFF

Widthof

Slit.

044. СW A lf.3

0-145

0-145

0-145

0-153

D 'ISS

0-153

0-153

O'l C7w * .) J0-1530-1530-1530-153О' I С ï" * 5 30-153

0-1530-1530-1530-153

0-153

о'юзD-ЮЗочозо-юз

очозочозО'ЮЗw t w j

ОЧОЗ

ОЧОЗ

ОЧОЗ

О-ЮЗ

0-1800-1800-1800-180o- 1 8o0-180o* 1 8o0-1800-1800-180

0-2300-2300-230o-23'oO'21Ow *JW

0-230

Dieplaoement.

Measured.

+ 0-052— 0-030— 0-060-0-055

— 0-086-0-093— 0-072—0-084— O'O27W \J* f

+ O-O22

+ 0-001

+ 0-OI7

— o-oio-ОЧ2О

— 0-032

+ o-o'6i+0-042—0-027—0-058

—0-125

+ 0-024+ 0-060— 0*11 ç«o—0-064

—0-013+ O-O2I— 0*003

o-ooo— o-ooi—0-009—0-006

+0-045+0-053+ 0-004+0-017—0-114—0*058— 0*006

— 0*021+0-005+0-003

—0-069-0-044—0-040-0-039— 0*028—0*023

Estimated.

+ £_ i

- ií

- è- A- i

_ AЛ+ i+ *-t- * .

+ -^+ è_ a

- *

~™ Т(Г+ A

+ *+ i

o+ A— -í-

- 1

- i- 1- iV- Л

Earth'sMotion InMiles perSecond.

+ I7'6+ I7'6+ 6*2

+ 6*2

+ 7'8+ 7'8+ 11*9+ "'9

+ I -7ï д /+ i*7

+ 2*8

+ 2*8

+ 1-3+ 1-3

— П

+ 17*9+ 17-9+ 16-8+ 16-8

+ 15-9+ 15-9

+ 17-9+ 17-9+ 10-5+ 10-5+ 8-9+ 8-9

+ 9'3+ 9'3+ 4'*+ 4'*


Second.

Measured.

— 1*8-26-7- 24*4- 22-9

-33'9-Збч-33-8- 374— 8-2+ 6-7+ 0-3+ S1'- 3'o— 38-1- 11-4

+ 157+ 9'9- 9'5— 1 8-9

- 36-9

— IO"6

+ 0*3— 51*7-36-2

- -<9'9- 9'5— 0*0w ^

0*0- 0-3- 2-7- 1-8

- 4-2- 1-8- 9'3- 54-43'S-26*5— 1-8- 6-4

+ «'S+ 0*9

- 30-3- 22*7

-I6-3

— l6'O

— 8'Cu j- 7-0

Estimated.

+ 2-1— 28-9-25*9- 21-9

-41*0

- 377- 36-8-36-8

— Ч4.'<53* 1— iro

+ 22*1

+ i7'i— 11*2

— 21*2

-38-8

- 9'6

+ 2'9

— со* ïЭ *- 50-1

— 20-0

- 7-6

- 41*- i'5- 10-5- *'3-41-7- *5'3

- 30-9- H7- 15*0- 15*0

REMARKS.

Measures made with difficulty.


Spectrum bright and fairly steady, butdefinition poor.

Spectrum bright and fairly steady, butdefinition poor.

The coincidence of the two spectraappeared perfect. The observationswere interrupted by passing cloud.

Spectrum bright but tremulous. Theobservations were interrupted by passingcloud.

Spectrum bright and fairly steady. Defini-tion fair.

Spectrum steady and fairly bright. Star-line very well seen. Measures consideredgood.

Spectrum faint. The observations wereinterrupted by cloud.


Spectrum faint and tremulous. Star-linefaint and very ill defned.

Spectrum fairly bright but tremulous.Definition f air. Displacement evidentlylarge and towards the blue. Star-linedark, very broad and diffused at theedges.

Spectrum fairly bright but tremulous.Definition fair. Displacement very small.



Star-line diffused and faint.

Definition poor. Measures rough.

The coincidence of the two spectraappeared fairly exact.


Star-line very indistinct.

Star-line very broad and dark.


B B S

12 MOTIONS OF STABS ш THE LINE OF SIGHT, INFEBBED FBOM SPECTBOSCOPIC OBSEBVATIONS


i h mMay 20. 23. 30

23-33

June 7. 22. 522. 20

June 8. го. 2010.21

io. 23io. 24io. 25

June 15. 23. о23. 522, AJQ*Э* Tv

23.4223-4323-45

16. o. 15o. 20o. 38o. 50

June 28. 23. о23. Ч23, 3023-45

29. о. оo. 20

o. 40o. 50ï. 5ï. 201-35i-5°

June 29. 12. о12. 2

12. 4

12. 6

12. 8

July J. 22. 3022. SO

23.1523.30

23-45

23.586. o. 1 5

о

N

N

MTA

КMMMM

NNNNNNNNNN

MHMMMIf

MMMMHM

MMMMM

MMHMHMM

Object.

Moon» »

Arcturus> >

Sky» »> »> >> »

Arcturus» »

Moon» >5 J

> )

y Ursse Majoris> >

a Ursae Majoris> »

Arcturue» >

e1 Boötis» >

a Serpentis ...> »

7 Draconis ...> >

•v C verni» >

a Cygni> »

Sky) »t »i ?> *

Arctums» »

o Coronœ Bor.> >

a Ophiuchi ...> »

Line

PF

6,ь,

i.*!

»i».»i

&i&iuj.Й1

»i61

b,61»I

ilUlbji.Й1

ft.

»,»iЙ1&i

b,6.

b.b.й-&,b.

FFFFFFF

Widthof

Slit.

rO'24OW AJW

0-230

ОЧб5

ОЧб5

0-165

0-165

0-l65

0-l65

0-l65

0-I5O

o- 1 50o* ï со" * Jw

0-1500-1500-1500-1500-1500-1500-150

0-1240-124O' 12a.ж T0-IZ4

O-I24

0-I24

0-I24

O-I24

ОЧ24

ОЧ24

O-I24

0-I24

0-I24

ОЧ24

0-I24

0-I24

0-I24

0-I50

O'ISO

O-I5O

0-I50

0-I50

d-I50

O-I5O

Displacement.

Measured.

r— O'OOQ7— o-ooi

-0-099— 0-096

+ 0-030+0-030—0-013+ 0-019— o-oii

-0-138-0-095— O'OIJ.

^ W1T

—0-014—0-023—0-006+ 0-006+0-037— 0-I2I

—0-138

— 0-049-0-074— 0*036+0-024+0-033+ 0-008

+0-072+0-044+ 0-009+ 0-007— 0-046+ 0-009

—0-013+ O-OIO+ 0-024+ 0-005— o-oi8

— 0-132— o-oii+0-124+ O - I I I— 0-023— 0-069— 0-08 1

Estimated.

- л- i

_ i— £

o+ *— i

- £- i- XTo

+ T+ ï+ A

+ *+ i+ A

o~~ T+ A

Í- A+ Л+ 1

-t~ A


+ 12*5+ Ï2 -5

+ i3'5+ I3-5

+ 10-9+ 10-9+ 8-7+ 8-7

+ 47+ 474- 1 i*7T 1 A /+ 12-7+ 11-7+ 11-7

+ 0-9+ 0-9- 6-9- 6-9- 74- 74

+ iS'i+ iS'i+ 11-4+ 11-4+ 57+ 57

O'O


Second.

Measured.

2*7л 1

- о'З

-497-48-5

+ n-3+ ITS- 4'9+ 7-1- 4'1

-65-3— 49-2

5'3- 5'3- 8-6— 2'2- 8-7+ 3-0- 54'-— 60-5

- 33'i— 42-5-26-2- 37+ 0-7- 8-7

+ 26-1+ 15-6+ 10-3+ 9'5- 9'9+ 10-8

- 4'9- з;8+ 9-0+ 1-9- 6-8

- 55-2— i8'4+ 26-3+ 22-3- 12-7— 26-7— 24-6

Estimated.

— 50-0-43-8

-62-3— 46-0

— 10-9

+ 54- 57'5- 57'5

— 36-0- 4!'3— 21*7

*J D

+ 2-5+ 3'5- 6-4

+ 41-6+ 25-7+ I7-5+ 6-9- i3'9+ 127

-54-8— 23-0+ 28-3+ 20-3-I3-6- 25-5-23-8

EEMABKS.


Spectrum faint but fairly steady. Star-linesfaint and seen with difficulty.





Spectrum faint. Star-line fairly well seenat times.


Spectrum very tremulous. Definition poor.

Spectrum fairly steady, but definition bad.Star-lines seen with great difficulty.

The spectrum of this star is of the secondtype, and not of the third, as given bySecchi. Spectrum faint. Definitionpoor. Star-lines seen with great diffi-culty.

Spectrum very tremulous. Definition bad.Star-lines seen with great difficulty.

Spectrum very tremulous. Definitionvery bad.

Spectrum very tremulous. Definition bad.Star-lines seen with great difficulty.



Position Circle, 6°,

Spectrum very tremulous, but star-linefairly well seen at times.

Spectrum fairly steady. Definition fair.

Spectrum steady. Definition fair.

Spectrum bright and steady. Definitionfair.

лт THE ROYAL OBSEBVATOBY. GBEENWICH, IN THE YEAB 1886. ia


d li niJuly 6. o. 30

O. AC• TJI. О

I. 20

I. 40

July 6. 13. 1513. 1713. 2013. 22

I 3 - 2 5

Aug. IO. 22. 30

22.3523. о23. 2

23. 523. 823. ID23.5323.58

II. I. 251.30

Oct. 13. 19. 40» 9 - 5 5

Oct. 1 8. 21.20

21. 40

22. 0

22. IO

Oct. 22. 1C. 25

19.40

20. J

Nov. 5 . 2 2 . 3 522.5523. ID23. 1523. 2023. 22

23.25

23-456. o. 5

o. 30

Obs

erve

r.

I

M

MIfMM

жMMMM

NNNNNNNNNNN

MM

MMMM

MHM

MMMMMMMMMH

Object.

a LyrSB

a AquilfS» »

a Cygni1 1

Sky» »» »» >» »

a LyrS9> >

Moon» »> >i >> »

a Áquilee> >

a Pegasi» »

» )

a Aquilffi> »

a Cygni> ï

a Lyrto> >

a Aquilffi

a Androinedte> >

Moon) )> >1 1i »

Rigel1 1

Line.

F

FFFF

FFFFF

FFFFFFFFFFF

FF

FFFF

FFF

FFFFFFFFFF

Widthof

Slit.

0-150

O'l COW 1 }W

0-150O'l COW 1 JW

0-150

0-1500-1500-1500-1500-150

O'l Id.W 1 1 Ц.

0-1140-1140-1140-114o'i 140-1140-114o'i 140-1140-114

0-1050-105

0-10504050-1050-105

0-1030-1030-103

0-1480*14804480*1480-1480-14804480-1480-1480-148

Displacement.

Measured.

г— 0-O04

— O'O7Qv / 7— 0-I05

— O"o6l

— 0-129

+ 0-007— O'OOO

+ 0-031+ 0-005— o-oo8

— 0*080— 0^084— O-OI2

— O'OII

—0-007—0-007+ 0-005— 0-052— 0-I2I

— O-O28

— o-oii

— O-2IO

-0-133

— 0467

— ОЧ72

— O-22I

-0-095

— 0-212

— 0-118-0-088

+ 0-035

+ O-OO9

4-О'ОЗЛ_~u UJT+ 0*046+ 0-013+ 0-012

— 0'014

+ 0*169

+ 0*161+ 0-054

Estimated.

0

— a

— 1

_ I|Я

- f- i"" Ttr

o

_ f

— ^

- í- í- í- 1

— jj— 1

+ i+ w

+ í+ *+ *


0*0

— A.' tT 3- 4'3— 6-8- 6-8

+ A-8Т 1-0

+ 4'8

+ 4'9+ 4'9- 9'3- 9'3

+ 8-7+ 8-7

+ 16-1+ 16-1+ 7'3+ 7-3

+ 8-s+ 8*s+ l6'2

+ 8-6+ 8-6

- 8*4- 8-4- 12-3


Second.

Measured.

— Г2

— 10*7•y /-27*6

— I 1*71 Ã /- 324

+ 2*1- i.*8+ 94+ i'S- 2*4

— 20*1*7 ï

- 30-3- 3-6- З'З— 2*1

— 2*1

+ i'5-20*7

-41*6+ o*8+ 6*0

-72*5-49*i

-66*8- 68*4-744-Збч

-72'9-44'3-42*9

+ 2-0

- 5'9+ 1 0*3'+ H'o'+ 4'°+ 3-6- 4*3+ 597+ 57'3+ 28*7

Estimated.

o-o

— I C'CЭ ">

- *74— I3'o-32*9

— 1I"4У J

- 3J '3

— 20-8

-447+ »Ч+ 9'3

-56*5— 40-6

- 544- 544-58-3-32-8

- 53-2- 3-S'S-38-5

(+ 9-0(- 4-1)

(+ 61-6)(+ 6 r6)(+ 3°'°)

REMARKS.

Position of star very awkward for observ-ing ; measures rough in consequence.

Spectrum tremulous, but definition fair.Star-line faint.

Spectrum bright and steady. Definitionfair. Position of star very awkward forobserving ; measures rough in conse-quence.



/


Spectrum very bright and steady. Star-line distinct.


Star-line broad and diffused.

Spectrum faint.

Position Circle, 6°,

Clouds constantly passing. Observationsmuch interrupted, but star-line seenfairly well at time of bisection.

Position Circle 6°.

Spectrum very faint and tremulous.

Spectrum faint but steady. Star-linefairly well seen.


Spectrum bright and fairly steady.

Spectrum bright and fairly steady.Position Circle, 6°.

The lines in the spectrum of the Moonseemed to be displaced towards the red.

14 MOTIONS OF STARS IN THE LINE OF SIGHT, INFERRED PROM SPEOTROSOOPIO OBSERVATIONS


Civil Time.

d b mNov. 6. о. 4о

о, joI. 0

Nov. 17.23. 1523.2523.4023.50

1 8. о. 50.150.25

о. зо0.35о. 4оо. joI. 0

I. IO

1.15I. 20. 25

•30

• 35• 4°• 45• 5°• 55

2. 52. IO

2. 2O

2. 3O2. 40 ,

2.45.2.50

2 - 5 53< о

.

Nov. 29. 19. 3019.3619.3919.4419.48

• '9- 5320. 30

. 20. 5021. 2O

21.40

22. О

22. 15

Nov. 30. ii. 3011.3411.37

II .4I11.45

g

О

MHM

MuMMMMHMMHMMMMMMMMMMMM

MMMHMMMMM

MHMMMMMMMMMM

MMMMH

Object.

Sirius» »

Aldebaran ..., ,,,, ,

*p'»pl

_y Orionis

, ,,,,

ß Tauri, ,

Sirius5 >

, ,

» >

J »

, ,

Procyon

, ,•> »

Castor

Pollux'

Moon» ?,,

• » >, ,

ß Pereei,,,,, ,, ,, ,

o Persei

Aldebaran

Capella

Sky, ,, ,, ,> ,

Line.

FFF

FFFFFFFFFFFFFFFFFFFFFF

FFFFFFFFF

FFFFFFFFFFFF

FFFFF

Widthof

Slit.

0*1480*1480*148

0*1190*1190*1190*119о" ï ig0-1190-1190*1190-1190-1190-1190-119O* I IO" * 7O'I ig

O'I ig

O-I I9

0-II9

O'Iig

o* 1 190-1190-1190-119

ОТ IQ

0*U9

O*I IO0*119О* I IQO'IigO'IigO'IigО* I IQ

0*173

0*1730*173

0*1730*1730*173

0*173О* 1 7t, "• / J0-173

0-173

0-1730*173

O*I730*173

Displacement.

Measured.

+ 0*050+ 0*073+ 0*069

+ 0*132+ 0*132+ 0*154+ O * I I I

+ 0*019+ 0*010+0*118—0*068+ 0*009—0*002-0*073— 0*032— 0*032+ 0*002+ 0*016+ 0*010— 0-008—0*032

O*n22

—0*062+0*034— 0*018

1

+0-075— 0*086— 0*118— 0*001

0*000— O'OOI—0*001+ 0*010

+0*095+0*094—0*039—0*017—0-015-0-043— O'OÎIw w^ 1+ 0*089+ 0*042

+ 0*08 1+ 0*006

+ 0*073

+ 0*015— 0*029— 0*000+ 0*028—0*011

Estimated.

i i

+ i+ i

+ %+ Z+ 1+ 2

• i

+ ТПГ

+ í— Jjf

oí

-"~ TV- 1v

o+ ITT+ aïr

0- i

17Г

+ i- Л

• i+ -ГZ È

.

+ %+ í— -jlg.

TO"- A~* т- -ATO

i j

+ Ii 3

+ 1

Earth'sMotion inMilee perSecond.

— I 2*3- 12*3- 12*3

- 4'1

— 4*1— 4*1- 4*1— C'A.5 T

- 5'4- 7-2- 7-2- 7*2- 7*2- 8*0— 8*0— IO*6— 10*6— 1 0*6— 10*6— IO*6— IO*6— I C'A' Э т- 154- 154- 154

t _

— 47

- ÎS'S

,

+ 3'9+ 3*9+ 3'9+ 3'9+ 3'9+ 3'9+ 2"O+ 2*0

— O'Ä

— 0'2— -,o

- 3-8

•

Concluded Motionof Stars in Milee per

Second.

Measured.

(~Ь 27*5)(+ 34'5J(+ 33-3)

+ 44*2+ 44*2+ 50-9+ 37-8-L 1 1 '2

+ 8*4+ 43 'о- 13'S+ 9'9+ 6*6- 14-2

+ O'Q+ II-2

+ 15-5+ 13-6+ 8*2

+ 0*9• -, -

- 34+ 25*7+ 9'9

+ 18*0+ 37'5— 10*6— 20*3^ O'Qо y

0*0- 0*3- 0*3+ 3'o

+ 24*9+ 24*7- 15*7— 9*0- 8*5+ 9*2— I l'A,д 'T

+ 25*0

•4- I2'Oт « * y+ 24-84- Î2'O~ У 7

+ 26-0

- 4-6- 8-8- 1-8+ 8-5- 3'3

Estimated.

(+ 30*0)

(+ 34'5)(+ 34'5)

+ 41*2+ 41*2+ 45-8+ 31 '9+ I I'O+ 8*2

+ 40*6- u-3+ 10*0

+ 7'2-18*5+ 2*4— 0*5+ 10*6+ l6*2

+ 134+ 10*6— 0*5+ 6*1

+ 20*5

+ 9'8

-I- ï 7'Cï * I У

+ Î6'9— 12*2lí 3- 12*3

+ JS'3+ ÏS'3- 8*7- 8*7- 6*3+ 57- 6*8+ 22*0+ 12*2

4- Í2*6~ J*- v•f 27*8

REMARKS.

JVbfe. — On examining the spectroscope onthe following morning, it was found tobe out of adjustment. The observationshave therefore not been used.


Spectrum steady, but star-line rather faint.

Spectrum tremulous, but star-line distinctand well defined.

Spectrum fairly bright and steady. Thestar-line appeared to be broader andmore diffused than usual.

Spectrum steady. Star-line well seen.

Spectrum very bright but tremulous.Star-line well seen. Direct comparison

showed that the two spectra were almostin exact coincidence, the displacement,if any, being towards the red.

Spectrum steady. Star-line well seen.Direct comparison showed that the twospectra were almost in exact coinci-dence, but with a very slight displace-ment towards the blue.

Spectrum steady and fairly bright. Star-line diffused, but seen well.

Spectrum steady. Star-line very faint,but seen fairly well at times.

The coincidence of the two spectra ap-peared perfect. Moon spectrum verywell defined.


Spectrum bright and steady. Star-linevery broad and diffused, but seen well.The displacement was evidently verysmall.

Spectrum steady, but star-line very diffi-cult to observe. Same type as Procyon.

Spectrum tremulous. Definition poor.Observations made with much difficulty.

Definition poor. Star-line seen with muchdifficulty. Observations rough.

Position Circle, 6°. •

No want of coincidence between the twospectra was detected.


AT THE ROYAL OBSHBVATORY, GBBBNWIOH, IN тнв YHAK 1886.


(1 h luDec. 4. 20. 40

20. SO

21. 521. 1521. 2 С* t * * э21. 2921.-32

21. 3621. 40

22. 5

22. 15

22. 25

гг. 3522. JO

23. 023. 1523.25

Dec. 14. 19. 55!9-5720. О

20. 420. 17

го. iç2O. 242O. 2020. 2820.33

1О

MMMMMMMMMMMM11HMMM

MMMMLLLЬЬH

Object.

ß Arietis1 1> >9 >

îdoon» >1 1» >9 >

/S Persei» >» *» >

a Persei> >

Aldebaran> >

|S Peraei»>*>>>ï>»

Line

FFFFFFFFFFFFFFFFF

FFFFFFFFFF

Widthof.

Slit.

O-2OÓ0-206O'ZOO

О'2ОбО'2Об0-200О'2Об0-20Ó0%2обO-ZOÓ

O'ZOO0-20бО1 2 об

0-206О'2Об0'2Об

0'20б

0-200О'2ОО0-200О-20О0-200О-2ООО-2ООО-2ООО-2ОО0-200

Displaoement.

Measured.

+ 0-130+ 0-059+ 0-042+ 0-092+ O'OI7— 0-041+ 0-02/

+ 0-024— О-О12

-0-358— 0-362

-0-395— 0-286

+ Q-OOI— 0-046

+ O"I l6

+0-167

+0-146+ 0*005+ 0412

— 0-029+ 0-005+ 0-008+0-030—0-030+0-067+ 0-103

Estimated

U+ *

— ti— ij— 1\— i

о

- l*+ 4п^ 2+ í

+ èо

+ è- Л+ iV+ í+ 1

0

+ 1+ 1

Earth'sMotion inMiles per

+ 12-1+ 124+ I2-I+ 12-1

+ 54+ 54+ 54+ 54+ 3'5+ 3'5+ r;• * j+ 1-5

+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3+ 8-3


Second.

Measured.

+ »74+ 5-8+ 0-6+ i5'9+ 44~ j *- 12-4+ 8-2+ 7-.1- 3-6

— /14-1-115-3-125-4- 9^3- 3'z- 17-5+ 33'8+ 49-2

+ 36-0- 6-8+ 25-7- 17-1- 6-8- 5'9+ 0-8- 17-4+ 12-1+ 23-0

Estimated

+ 28-3+ 8-1- 4-0+ Ч'8

— io6'4— 106-4-126-6- 86-2- 3'5- 1 1-6+ 38'9+ 47'°

+ 29'5- 8-3+ 29'5— I2-I

- 0-7+ *9'5+ *9'5- 8-3+ 10-6

+ 29'5

REMARKS.

Spectrum rather faint but steady. Defini-tion good.

Spectrum bright and steady. Definitionfair. The coincidence of the twospectra appeared perfect.

Spectrum rather faint but steady. Star-line not seen very well, but unmistake-ably greatly displaced towards the blue.

Spectrum steady. Definition good. Dis-placement evidently very small.

Spectrum bright and steady, but star-line not seen well.




16 MOTIONS OP STAKS ш THE LINE OF SIGHT, INPEEBBD PROM SPBCTEOSCOPIC OBSERVATIONS

ROTATION of JUPITEE deduced from the Relative Displacement of Lines in the Spectrum at the Preceding and Following Limbsrespectively.

Date, 1886.

Greenwich

Civü Time.

p Limb. / Limb. Line.

Width

of

Slit.

Displacement

Measured.

P-f

ConcludedMotion inMiles perSecond,

P-f

Position

Circle.REMABKB.

d. h. m.May 15. 22. 40

22. 50

23. о23-152 3 - 2 5

MMMHM

r.i-oio1-0521-0761-0241-099

Г.

0-9330-8980-9940-9620-942

FFFFF

r.0-1030-1030-1030-103O-IO3

0-0770-1540-0820-0020-157

Mean..

+ 234

+ 46'8

+ 24-9+ i8-8+ 477

32

32

32

32

+ 32-3

Cylindrical lens before slit. Slit tangential tolimb. The limb of the planet was brought upas carefully as possible to the outer edge ofthe slit, which was about i"-o in width. Themean point observed was therefore about o"'5from the limb. Spectrum faint, and measuresvery difficult though the definition was fair.

Calculated Relative Motion of the limbs (p—f) + 32 miles per second.

AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAR ШС>. 17

EXPERIMENTAL OBSERVATIONS of DISPLACEMENT of LINES in the SPECTRA of STARS, us compared with those ofTERRESTRIAL ELEMENTS, mado with the REVERSION APPARATUS of the OXFORD REVERSION SPECTROSCOPE, at theROYAL OBSERVATORY, GREENWICH, in the Year 1886.

The following observations were made with the reversion apparatus and viewing telescopo of the Reversion Spectroscopebelonging to the University Observatory, Oxford, which had been lent by the Rev. Prof. Pritchard for the purpose of experiment.The slit, collimator, and prisms of the Greenwich Half -prism Spectroscope were used, the Oxford Reversion Spectroscope notbeing well adapted in its complete state for use with the S. li. Equatoreal, but the viewing telescope of the Half -prismSpectroscope was taken off, and the reversion prisms and viewing telescope of the Oxford Spectroscope substituted for it. As theaperture of the telescope of the Oxford instrument was very much smaller than that of the Half-prism Spectroscope, a considerableportion of the light was lost in this rough combination. It was not found possible to attach the two instruments very rigidly toeach other without making serious alterations in one or the other. The observations were therefore made under greatdisadvantages, and direct micrometric measures were found to be out of the question. The following estimations were howevermade successfully. One half-prism was used throughout.

Date, i88G.

Greenwich

Civil Timo.

h mFeb. z6. zo. 5

ZO. 10

zo. 1520. 20zo. 2522. 30

20.35

20. 40

20. 4520. 5020.5521. О

21. 5

21. 1521. ZO

21.25

21. 30

2 1 - 3 5

21.45

21. 50

2 1 . 5 5

22. 0

22. 5

н-

EsaО

MMMMMMMMMMMMM

MMMMM

MMMMM

Object.

Sirius

Procy on1 ,

ï >

> 1, 1

Castor1 1» ii >» >

Lino.

FFFFFFFFFFFFF

FFFFF

FFFFF

Width

oC

Slit.

04350-1350-1350-1350-1350-1350-1350-1350-1350-1350-1350-1350-135

O" H çw ж j j0-1350-1350-1350-135

0-1350-1350-1350-1350-135

Estimated

Displace-

ment.

- -tT

— ^— I— i— ; •

— ;•_ . .— - j_

- i— i- i

о- А

ï А о~~ 100

0

+ тЬ

+ тЖг+ iV+ 1+ 1

-

Earth'sMotionin Miles

perSecond.

+ I ГО+ 11-9+ 4'9+ H'9+ H'9+ H'9+ 11-9+ H'9+ 11-9+ H'9+ H'9+ H'9+ 1Г9

Mean

+ I Z ' C-[-1*5

+ "'S+ 12-5

+ 12-5+ 12-5Moan

+ H'i+ 144+ H'1

+ H' i+ H'1

Mean

jonoludedMotion of

Starin Miles

>er Second.

— 24'!

- 76-9- 44'4— 60-7- 24-1-72-8— 72-8-7Z-8-85-1— 60-7- 24-1— 60-7- 24-1

- 57-2

— i z ' c1 * >- 174- 13-0- 13-0- 12-5

- 137

-13-6-I3-6- 9'2+ z-i+ 2-1

- 6-4

REMARKS.

Spectrum very tremulous, and definition poor. Neither themicrometer screw moving the prisms of the Half-prismspectroscope, nor that moving the prisms of the reversionapparatus moved with sufficient steadiness for any trust-worthy measures to be obtained by their means. It wasonly possible therefore to make estimations. These weremade by bringing the two images of the dark F line inthe star spectrum into coincidence, and then immediatelyflashing in the bright hydrogen line, and estimating thedistance between the centres of the two images of thebright hydrogen line in terms of its breadth. In the firstnine observations the micrometer screw moving theprisms of the Half-prism spectroscope was turned inorder to bring the lines into coincidence ; in the last four,the micrometer screw of the reversion apparatus ; thelatter proved much the more sensitive and satisfactory ;indeed when the finger was lifted from the first-men-tioned micrometer the spectra would often shift whileactually under observation. Notwithstanding the com-parative faintness of the spectrum, its tremulousness andpoor definition, it was found fairly easy to bring the twospectra into coincidence, but it was not so easy as hadbeen anticipated.

Spectrum faint. Definition poor. The observations of thisstar were however much more satisfactory than those ofSirius, and repeated observations showed that the dis-placement was practically nil. The precision with whichthe two images of the line could be brought into coinci-dence was evidently much greater than that with whichthe star line can be bisected by the pointer in the ordi-narv observations with the Half -prism spectroscope.

The spectrum was exceedingly faint, but the observationswere made with comparative ease, the extreme faintnessof the spectrum being the only drawback.

•

The adjustment of this rough combination of the twospectroscopes was defective in one particular, which mayhave affected the measures systematically. Although thelines in the two spectra were truly parallel to each other,the two spectra themselves were not parallel ; the in-verted, — not the reversed, — spectrum, which was thelower in the field of view, sloping downwards towardsthe right hand, that is towards its own red end.


GBHBNWIOH OBSHBVATIONS, 1880. 6 0

is COLLECTED RESULTS FOR MOTIONS OF STABS IN THE LINE OF SIGHT, FROM SPECTROSCOPIC OBSERVATIONS

Date, 1886.Sä

0

<н .

Эмъ*

«g

S gí 8ЗекUS

PositionCircle.

Width ofSlit. Line.

Earth's Motionin Miles per

Second.

Concluded Motion of Star inMiles per Second.

Measured. Estimated.

COLLECTED RESULTS for MOTIONS of STARS in the line of Sight, from SPECTROSCOPIC OBSERVATIONS•made at the ROYAL OBSERVATORY, GREENWICH, in the Year 1886.

(F for the Star or Moon is compared with H/3 of Hydrogen ; and blt Ьу Ь4, with Mgj, Mg2, Mg8, of Magnesium.)

( + denotes Recession ; — Approach.)

a ANDROMEDA.

F line broad and nebulous. Estimated total breadth 18 tenth-metres ; central and more condensed portion 8 tenth-metres.

January 27

February ï

November 5

M

M

H

2

2

2

1

1

1

1 86

6

6

0-154

0404

0-148

F

F

F

+ 154

+ 47

+ 8-6

— 26-4

- 75'3

(- *'°)

— 23-6

- 44-2

(+ *'S)

y PEGASI.

F line broad and diffused at the edges.

February ï M 2 1 6 O-I04 F + ï S'° - 6-5 - 57

Д ARIETIS.

F line broad, estimated breadth 18 tenth-metres, but dark and lese diffused at the edges than in many stars of the type.

February ï

December 4

M

M

2

4

1

1

6

6

0-104

0-206

F

• F

+ 184

+ I 2 - I

- 854

+ I2'4

- 45'5

+ I I - 8

y3 PERSEI,

F line broad, estimated breadth г t tenth-metres. The character of the line appears to change ; it i» generally nebulous without anycentral condensation, but has occasionally been observed as dark and sharply defined.

January 27

February ï

November 29

December 444

M

M

M

MML

2

2

6

455

1

1

1

111

186

6

6

666

0-154

0-104

o'i73

0-206O-2OOO-2OO

F

F

F

FFF

+ 16-8

+ 17-1

+ 3'9

+ 54+ 8-3+ 8-3

— 50-2

- 28-6

+ 4'3

— 1 I I - 8+ 12-2

- 3*4

- 464- 307+ 2-Г

— 106-4

+ I3'6+ I2-I


Date, 1886.

о Num

ber

ofM

easu

res.

Num

ber

ofP

rism

s. Position

Circle.

Width of

Slit.Line.


Second.

Concluded Motion of Starin Miles per Second.


a PERSEI.

The P line in this spectrum resembles that of Prooyon, viz., a narrow but rather faint lino on a broad nebulous band. The latter isnearly 24 tenth-metres in breadth.

January 27

February ï

November 29

December 4

M

M

M

M

2

2

2

2

1111

186

6

6

6

0-154

0404

0-173

0-206

F

F

F

F

+ i s - i

+ 15-6+ 2-0

+ 3'5

- 40-9

— 21-2

+ 6-8

— io"4

- 34-8

- «57

+ 7-6

- 7-6

a TAURI (AldfifMrari).

F line narrow, sharp, and fairly dark ; b lines narrow, sharp, and distinct.

January z 7

March 3'7

November 1 729

December 4

M

MM

MM

M

2

22

42

2

111111

1 86

66

66

б

0-154

0-1900-153

0-1190-173

0-206

F

Fbi

FF

F

+ l6-3

+ l8'5

+ 174

- 4'1— 0-2

+ i-S

+ 22-9

+ 24-8+ 13-6

+ 44'3+ 18-9

+ 41-5

+ 8-3

+ 134+ H'9

+ 4°'°+ 18-2

+ 43-0

a AimiGJE (Capella).

F line narrow and sharp, but not very dark ; l> Ипоя narrow, sharp, and fairly dark.

January 27

March 317*3

April 6

November 29

M

M' M

N

N

M

4

222

2

2

111111

1 86

66

1 86

6

6

0-154

0490

0-1530-190

0-218

0-173

F

Fui6i

F

F

+ 12-9

+ 17-1+ 16-9+ 1 6-6

+ 15-1- 3-8

- 4'o

- S4'5+ 4*'3— 20-8

+ I'S

+ *9'5

- 3'9

- S»'S+ 46-6- 16-6

- 0-4

+ 30-2

ß ORIONIS (Rigd).

F lino narrow, sharp, and fairly .dark ; estimated breadth O'g tenth-metre.

January 27

February ï

March 3

November 518

M

M

M

MM

2

2

2

2г

11111

1 86

6

6

66

0-154

0-104

0-190

0-148o-i 19

F

F

F

FF

+ 12-9

+ 137

+ 1 6-0

- 84- 54

+ 30-6

+ 5-5

+ 194

(+ 58-5)+ 9'8

+ i?'8

+ 0-3

+ 8-8

(+ 61-6)+ 9%б

6 0 2

20 COLLECTED RESULTS FOR MOTIONS OF STARS IN THE LINB OP SIGHT, FROM SPECTROSCOPIC OBSERVATIONS

Date, 1886.fe

о Num

ber

ofM

easu

res.

Num

ber

ofP

rism

s. Position

Circle.

Width of

Slit.Line.


Second.



y ORIONIS.

F line narrow, but a little diffused at the edges. Estimated total breadth 4 tenth-metres, central condensation гз tenth-metres.

January 27

February ï

March 3

November 1 8

M

M

M

M

2

2

2

4

1

1

1

1

1 86

6

6

6

0-154

0-104

0-190

0-119

F

F

F

F

+ i3'6

+ 14-6

+ 17-8- 7'z

+ 4'9

- ï 'S

+ 6-3

+ 11-5

- *'7

- 4-0

+ 0-6

+ м-б

ß TAURI.

F line broad, diffused, and fairly dark. Breadth 16 tenth-metres, central condensation 4-0 tenth-metres.

January 27

February ï

March 3

November 1 8

M

M

M

M

2

2

4

2

1

1

1

1

1 86

6

6

6

0-154

0-104

0-190

o-i 19

F

F

F

F

+ 13-8

+ 14-8

+ 18-4

- 8-0

- 38-0

- 25Ч

- 3i '5

- 8-0

- 37'9

- 25'3

- 3S'i

- 8-1

S ORIONIS.

F line faint and ill-defined, but not very broad.

January 27 M 2 1 186 0-154 F + ia'7 + 7'8 + 3'8

« ORIONIS.


January 27 M 2 1 1 86 0-154 F + 124 + H'8 + 7'3

f ORIONIS.


January 27 M 2 1 1 86 0-154 F + I 2 - I + I3'2 + 4'2

AT THE ROYAL OBSERVATORY, GREENWICH, IN THE YEAE 1886. 21

Date, 1886.

О Num

ber

ofM

easu

res.

Num

ber

ofP

rism

s. Position

Circle.

Width of

Slit.Line.


Second.

Concluded Motion, of Starin Miles per Second.


к ORIONIS.

F line dark and distinct.

January 27 M . 2 1 1 86 0-154 F + 10-9 - 21-4 - 19-1

a ORIONIS.

Third type spectrum. The Ь lines stand out on the background of a shaded band from which it is often difficult to separate them.

March 1 7 M 2 1 6 0453 u« + I?'» + 34'° + 394

ß AURIGÊ.

F line broad and nebulous.

January 27

March 3

M

M

2

2

1

1

186

6

0-154

0490

F

F

+ 1ГЗ

+ i6-8

- 35'5

- 587

- 4°'9

- SS'»

y GEMINORUM.

F lino dark but very broad, and very diffused at the edges,

January 27

February

M

M

6

2

1

1

186

6

0-154

0404

F

F

+ 9'S

+ 10-9

— 48-1

- 437

- 407

- 34'z

o CANIS MAJORIS (Sirius).

F lino dark, but vory broad and diffused at the edges. Estimated breadth 2 1 tenth-metres, central condensation 6 tenth-metres.

January ï 927

* February 26

March 3

November 618

MM

M

M

MM

2

6

13

6

6

11

1

1

11

1861 86

6

6

66

0-1500-154

0-135

0-190

0-148o-i 19

FF

F

F

FF

+ 44+ 6-3

+ i i '9

+ 12-6

- iz '3— ю-б

- 137- 3»'6

...

- 38-6

(+ 3«'°)+ 8-4

- i3 ' i- 32-2

- 57'»

- 357

(+ 3«'3)+ 8-3

* Observations made with the reversion apparatus of tho Oxford Reversion Spectroscope.

22 COLLECTED RESULTS FOE MOTIONS OP STARS IN THE LINE OP SIGHT, FROM SPECTROSCOPIC OBSERVATIONS

Date, 1886.

0 Num

ber

ofM

easu

res.

Num

ber

ofP

rism

s. Position

Circle.

Width of

Slit.Line.


Second.



o GEMINORUM (Castor}.

The two componente of this double star have been observed together as one star.

P line very broad and nebulous. Estimated breadth 2 1 tenth-metres ; no central condensation.

January 27

•February 26

April 6

May ï

November 1 8

M

M

N

H

м

2

5

4

2

2

11

1

11

1 86

,6

6

6

6

0-154

0-135

0-218

0-065

0-119

F

F

F

F

F

+ 6-2

+ i+'i

+ 18-0

+ 16-4

- 147

+ 19-1

...

- 14-9

+ 247

+ 27'8

+ 32-1

- 6-4

- 15-8

+ 13-0

+ 27-2

* Observations made with tho reversion apparatus of the Oxford Reversion Spectroscope.

a CANIS MlNORIS (Prooyon).

V line narrow but rather faint and surrounded by a broad nebulous haze. Estimated breadth of haze 16 tenth-metres.

January 182728

•February 26

March 3

April 6

May ï

November 1 8

NMN

M

M

N

M

M

36I

5

4

2

2

4

11111111

со с

о со

Оч

О\

О\

6

6

66

6

0-1500-1540-154

0-135

0-190

0-218

0-065

0-119

FFF

F

F

F

F

F

+ »'S+ 44+ 47

+ 12-5

+ 13-6

+ 17-5

+ 16-6

- 154

+ 0-3- 13-8- 4-1

...

- 38-8

- 21-5

- 57'9

+ 9-S

- 13-5- 47

- 137

- 41-3 .

- 21-9

- 41/3

+ 9-8

* Observations made with the reversion apparatus of the Oxford Roversion Spectroscope.

ß GEMINORUM (Pollux).

F line narrow but faint. Ъ lines narrow and sharp but faint.

January 27

March 1723

April 6

May ï

November 18

M

MN

N

M

M

2

2

2

2

2

2

1

11

1

1

1

186

6i86

6

6

6

0-154

0-1530-190 .

0-218

0-065

0-119

F

6,

F

F

F

+ 5'3

+ 16-8+ 174

+ 18-1

+ 16-9

- I 5 - 5

- 45-1

- 29-4- 24-3

- 30-5

- 45-8

- I 5 -5

- 51-8

- 39'°- 23-8

- 29-9

- 454

- 12-3

AT THE ROYAL OBSERVATORY, GREENWICH, ш THE YEAR 1886. S3

Date, 1886. I. Position

Circle.

Width ofSlit Line.


Second.



April

May

3°

бi s18

a LEONIS (Rcgulus).

F line faint, very ill-deflned, and nebulous. A specially difficult object for measurement.

N

MNMN

llll

6666

0-175

0-1450-1030-180

F

FFFF

+

17-6i7'917-9

- 17-2

+ 1-8- Н'З

- 17-2

> 34зч2>9

May м

MAJORIS.

F lino dark, broad, and nebulous.

0-065 F + 12-7 + 57 — 2-O

MAJORIS.

F lino exceedingly faint. 1> lines fairly well defined.

May

June

I

16M

N

l

l

6

6

0-140

0-150

+ 117

+ 8-7

597

S7'3

- 5*7

- 57'5

<5 LEONIS.

F line very broad and dark, and somewhat ill-donned at the edges. Estimated breadth 19 tenth-metres ; central condensation,8 tenth-metres.

May M 0-103 + 16-8 - 50-1

ß LEONIS.

F lino very brood and diffused at the edges. Estimated breadth 26 tenth-metres ; central condensation, 5 tenth-metres.

April

Мяу

30

4

N

MM

ll

0-175

0-1350-103

F

FF

+ H'2+ iS'9

- 30-5

— 10-9- "47

- 10-5- 13-8

24 COLLECTED RESULTS FOB MOTIONS OF STARS IN THE LINE OF SIGHT, FROM SPECTROSCOPIC OBSERVATIONS

Date, 1886. Il Зр-i

Position

Circle.

Width of

Slit.Line.


Second.



y URS,E MAJOR is.

F line very broad and nebulous.

May

June

ï

16

M

N

6

6

0-140

0-150

F

»i

+ 117

+ 10-9

+ 1-2 + 0-8

- 2-8

y VlRGINIS.

The two components of this double star have been observed together as one star.

F line faint, broad, and diffused at the edges.

May 0-135 + 10-4 - 41-1

t TJRS-Ж MAJOHIS.

F line very brood and nebulous.

May 0-140 F + 9'5 - 5'ï - 3'°

a CANUM VENATICORUM.

F line very dark, broad, and well denned.

May M 0-153 + u'9 - 35-6 - 36-8

a VlRGINIS (Spica).

V line faint and ill-defined.

April

May

3°

418

N

IIM

66

0-175

0-1350-180

F

FF

+ 57

+ 6-6+ 10-5

- 6o-8- 74

- 157

- 534- 6-4

May

í ÜBS-ж MAJORIS.

F line dark, broad, and nebulous.

M 0-140 F 8-4 + 6-5


Date, 1886.

о Num

ber

ofM

easu

res.

Num

ber

ofP

rism

s. Position

Circle.

Width of

Slit.Line.


Second.



a BOOTIS (Arcturm).

F line narrow and sharp, b lines dark, narrow, and sharp.

April 30

May 46

»318го

June 7

« 528

July 5

N

MNMNN

MNM

M

2

22

2

22

2

2

2

2

1111111111

6

66666

666

6

0-175

°4350-14504530-1800-230

0-1650-1500*124

0-150

F

FFFFF

b,*,ft.

F

+ 4'8

+ ÍS+ 6'2

+ 7-8+ 8-9+ 9-3

+ ii-5+ 13-5+ H7

+ IS1 '

— 21-0

- 71-3- 237- 35'°- 35-°- 2б'5

- 49' i- S7'3- 37-8

- 36-8

- 21-5

- 64-6- Z3'9- 394- 33'5- *7-8

- 46-9- 54-z- 387

- 38-9

€= BOOTIS.

F line faint and narrow.

June 28 M 2 1 6 o- 1 24 F + 12-7 - 15-0 - 10-4

ß LlltR/K.

F lino faint and narrow.

May 13 M 2 1 6 0 - i53 F + 17 - 24-8 - *3'3

a CORONvE BORKALIS.

F lino dark, very broad, and diffused at the edges. Estimated breadth 31 tonth-metrea ; central portion of the line 8 tenth-metrus. Thereis no very marked condensation at the centre of the line.

May 4Ч2O

July 5

MMN

M

422

2

111

1

666

6

°Ч350-1530-230

0-150

FFF

F

+ 0-7+ 2-8+ +-z

+ 1 1-4

- 26-6+ 12-8- 16-2

+ *4'3

- 23-8+ I9'6- 15-0

+ *4'3

a SBRPHNTIS.

l> linos very faint and difficult to net'.

June 29 M 2 1 6 0*124 A. + 117 - 4'° - >'5

GUKKNWIOH OnaHRVATIONS, 188«. Г, D

se COLLECTED RESULTS FOB MOTIONS OF STABS IN THE LINE OF SIGHT, FBOM SPECTBOSCOPIC OBSEBVATIONS

Date, 1886.

1 Num

ber

ofM

easu

res.

Num

ber

ofP

rism

s. Position

Circle.

Width of

Slit.Line.

Earth's Motionin MUCH per

Second.



ß SEBPENTIS.

May 14 M 2 1 б 0-153 F + 1-3 — 14-2 - 16-2

: . ' 7 HEBCULIS.

F line broad and diffused at the edges.

May , 14 M I 1 6 0-153 F — l-l - Зб'9 - 38-8

a OPHIUCHI.

F line dark, very broad, and diffused at the edges. Estimated breadth, 34 tenth-metres ; central portion, ю tenth-metres. No very markedcentral condensation.

July S M 2 1 6 0-150 F + 57 - 197 — 19-6

y DBACONIS.

Ъ lines sharp and distinct.

June 29 M 2 1 6 0-124 ». + 0-9 + ZO'9 + 337

a IÍYRM (Vega).

F line dark, broad, and diffused at the edges. Estimated breadth 16 tenth-metres, central condensation 4 tenth-metreB.

July 6

August i o

October 1 322

' M

N

HM

2

2

22

1

1

11

6666

0-150

0-114

0-1050-103

F

F

FF

+ o-o

+ 4'8

+ 87+ 8-5

- 12-9

- »97

- 6о-8- 58'6

- 11-9

- 3i'3

- 48-6- 44'8

a AQUILO (Altair).

F line dark, very broad, and diffused at the edges. Estimations of breadth very discordant.

July 6

August i o

October 1 822

M

N

MM

2

2

2I

1

1

11

6

6

66

0-150

0-114

0-1050-103

F.

F

FF

- 4'3

+ 4'9

+ 16-1+ 16-2

- z .v;

- 31-2

- 67-6- 4Z>9

- 21-5

- 32-8

- 544- 38-5

AT тнв ROYAL OBSERVATORY, GREENWICH, IN THE 'YEAR 1886.

Date, 1886.

0 Num

ber

ofM

easu

res.

Num

ber

ofP

riem

e. Position

Circle.

Width of

Slit.Line.

Earth'» Motionin Miles per

Second.



y CYGNI.

F and li lino» narrow, but somewhat faint.

June 29 M 2 1 ' 6 0*124 AI - 6-9 + 9'9 + 12-2

a CYGNI.

F lino narrow and fairly dark ; ft lines narrow but faint.

June 29

July 6

October 1 8

M

M

M

2

2

2

1

1

1

6

6

6

0-124

0-150

0-105

ft,F

F

- 74

- 6-8

+ 7-3

4- 0-5

— 22M

- 55'3

- 0-6

— 23"O

- 45-6

a PEG AST.

F Hue broad and diffused at the edges.

January 2 7

February ï

August 1 1

M

M

N

4

2

2

1

1

1

1 86

6

6

ом 54

0-Ю4

о- 1 14

F

F

F

4- i2'4

+ 11-2

- 9'3

- 344

- 35-8

+ 34

- 26-1

- *5 '>

+ 54

MARS.

March 1 723

April 622

30

May 4

M

N

MNN

M

44

2

I

2

4

11

111

1

61 86

666

6

0 - 1 5 3o-igo

0-2180-1370-175

e ' iSÜ

?'*i

FFF

F

:::...

...

+ 10-8- 6-9

+ 2-3+ 1-8+ S'i

- 7'»

+ Ч'9- 9'°

+ 1-5О'О

+ 4-0

- 74

VENUS.

January 16*7

MM

IOIO

11

169186

0-150O-2O1

FF

- 6-8- 13-6

- 77- 7-6

5 D 2

28 COLLECTED RESULTS FOR MOTIONS OF STABS IN THE LINE OF SIGHT, FROM SPECTROSCOPIC OBSERVATIONS

Date, 1886. ÜëI0

•g j r filE S1»

'Sgl g•S .«S

<Ëfc

Position

Circle.

Width of

Slit.Line.


Second.

Concluded Motion of Starin Muée per Second.


MOON.

January 1 8

March 17

May 13Ч1820

June 1 5

August i o

November 518

December 4

N

M

11MNN

N

N

MM

M

4

5

SS44

4

5

5S

5

1

1

1

1

1

1

1

1

1

1

1

1 86

6

6666

6

6

66

6

0-150

0-153

0-1530-1030-1800-230

0-150

0-114

0-148o- 1 19

0-206

F

*i

FFFF

*i

F

FF

F

...

...

...

...

...

...

...

+ 2-5

— o- 1

+ 0-2

— Г!

- i'S- 4-6

- 54

- i'9

(+ 5-5)+ 0-3

+ 0-9

...

...

...

...

...

...

...

SKY.

January 28

February 2

March 4H

May 3

June 829

July 6

November 30

M

M

MN

M

MM

M

M

5

5

53

5

55

5

5

1111

11111

186

6

61 86

6

66

6

6

0-154

0-104

0-1900-190

0-140

0-1650-124

0450

0-173

F

F

FF

F

*,AI

F

F

...

...

...

...

...

...

...

...

+ 1-2

+ 3-2

— г'\- «'j

- 0-6

+ 4'i- 0-9

+ 1-8

— 2-0

...

...

••

...

...

ROTATION OF JUPITER.

Displacement between the p and /limbs.

May 15 M 5 1 32 0-103 F ... + 32'3 ...

AT THE ROYAL OBSERVATORY, GRBBNWIOH, IN THE YEAR 1886.

OBSERVATIONS OF THE SPECTRA of 51 SOHJELLERUP, NOVA ORIONIS, and of COMETS 1885 and 1886, made

at the ROYAL OBSERVATORY, GREENWICH, in the Year 1886.

51 SOHJELLERUP.1886, January 6.

Single-prism Spectroscope.Observer, M.

The Spectrum was very faint, and not seen at all well. It consisted mainly of a bright strip lyingbetween I and D, and interrupted by one dark band in the yellow. This bright strip was bounded towards theblue by a broad dark shaded band in the green near h, the light beyond being so feeble that the sharp edge ofthe band might be almost said to terminât« the spectrum in that direction. Towards the red, the bright stripwas bounded by another dark band near D, which might in like manner be almost said to terminate thespectrum in that direction, only a very feeble light being traceable beyond it.

The star spectrum was compared with the spectrum from a Bunsen flame, and the bright band in the greenof the Bunsen flame was seen to be closely coincident with the dark band in the green in the star spectrum.The coincidence of the bright band in the yellow of the flame spectrum with the dark band in the yellow ofthe star spectrum could not be directly observed so satisfactorily. A measure however appeared to show that it

• was very close. The third band in the spectrum of the flame, that in the blue, was not compared with the starspectrum, that region of the star spectrum being too faint for examination.

The following measures of the positions of the sharp edges of the bands in the green and yellow of thespectrum of the star, as compared with the corresponding bands of the spectrum of the Bunsen flame, wereobtained :—

ObjecteCompared.

Star

Bunsen flame

Star

Bunsen flame

Star

Bunsen flame

BandObserved.

Green band

do.

Green band

do.

Yellow band

do.

MicrometerReadings.

r0-389

0-282

0-983

0-999

0-695

0-671

Displacement.

In Revolutions.

r+ 0-107

— O'Ol6

+ 0-024

In Wave-length.

tenth-metres.- 4'3

+ 0-6

- i-3

InferredWave-lengthof Star Band.

tenth-metres.

51597

5164-6

5631-7

MeanInferred

Wave-length.

tenth-metres.

)

V 5162-2

i

5631-7

Thal en's wave-lengths for the less refrangible edges of the bands in the spectrum of the Buueen flame havebeen assumed as follows :—

Band.

Green band

Yellow band

Wave-length.

tenth-metres.5164-0

5633-0

зо OBSERVATIONS OP THE NOVA OEIONIS AND OF COMETS 1885 AND 1886

NOVA ORIONIS.1886, January 6.

Single-prism Spectroscope.Observer, M.

No details additional to those seen on 1885, December 29, were made out ; indeed the spectrum was not seenso well now as on the former occasion.

1886, January 11.

Single-prism Spectroscope.' Observer, M.

The star was now much fainter and paler than on December 29 and January 6. The red and blue endswere too faint for any details whatsoever to be made out in them, and the beauty of the spectrum as it hadbeen seen on December 29 was quite lost, the vivid alternations of light and darkness being now not nearly soconspicuous and well defined.

Only three dark bands were clearly seen, and these could not be satisfactorily, measured. These werebands V., VI., and VII. of the numeration employed in the observations of ß Pegasi made on 1876, October 18 ;wave-lengths as then determined, Л 5450, A 5164, Л 4953. In Dunér's nomenclature, these are bands 6, 7, and 8.Immediately beyond band VI. towards the blue, the spectrum was, relatively, very bright, and might well havebeen supposed to indicate the presence of bright lines, but this district is always very bright in stars of thistype. The dark bands seemed narrower, and not so dark as on December 29, and the bright intervals or zonesfar less bright than on that occasion, the zone just alluded to being the only one retaining any large proportionof its former brilliancy. It is clear therefore that the diminution of the light of the star was not accompaniedby an increase in the breadth and darkness of the dark bands, but by a diminution in brightness of the generalcontinuous spectrum.

: COMET e 1885 (BARNARD).1886, March 31. '

Half-prism Spectroscope. One "half-prism" reversed.

Observer, M.The comet was very faint and great difficulty was experienced in bringing it on to the slit of the spectro-

scope. The spectrum consisted of the usual three bright bands, sharp towards the less refrangible edge,and shading off towards the more refrangible. Of these the one in the blue could only just be discerned ; theone in the green was as usual very much brighter at its sharp edge than was the one in the yellow, but it wasnot traceable so far towards the blue, for whilst the yellow band was traceable almost up to the green band,the latter could only be traced to about Л 4965.

The green band appeared to be about 72" in height, the yellow band about 43" or 45" or perhaps even 48" or50" ; but the yellow band was nearly as high at its faintest point as at its brightest. It did not fade awayrapidly towards the blue as the green band did, but continued with very little diminution of brightness for along distance from its bright edge. There was, however, a broad distinct dark gap between the last trace ofthe yellow band and the bright sharp edge of the green band.

There was no trace of a continuous spectrum seen, although the comet showed a distinct stellar nucleus.It was not found possible to get any satisfactory measures, but it was quite clear that the green band coincidedvery nearly if not exactly with the green band of the spectrum of the Bunsen flame, and not with the greenband of the spectrum from a vacuum tube filled with carbonic dioxide. Indeed, if there was any want ofcoincidence with the spectrum of the Bunsen flame, the comet band lay towards the blue of the band of theBunsen flame, and not towards the red.

The height of the blue band of the comet spectrum was about 29". The yellow band was traced from aboutA. 5633 to X 5226.

AT THE ROYAL OBSEHVATOHY, GREENWICH, IN THE YEAR 1886. SI

Half-prism Spectroscope ; one " half-prism " direct.1886, May 4.

Observer, M.

The comet was not observed until the dawn was very far advanced ; and the spectrum could only be seenfrom the actual nucleus, as the light from the sky was so strong as quite to overpower the light from the comaand tail of the comet. The blue and green bands were seen, the latter being particularly well defined.

The following meaHures were obtained of the Green Band :—

Date, 1885.Greenwich Civil

Timo.

Il Ml

May 4. 3. 35 |

3-45 1

Objeot.

CometBuneen-flmm»CometBunsen-naine

MiorometorHandings.

r0-507

o'3790-5680-626

Displacement.

In Revolutione.

r+ очг8

— 0-058 '

In Wave-lenpths.

toiith-metrea.

+ ГЗ

- 0-6

InferredWave-length of

Comet-band.

tenth-metres.5165- 3

5163- 4

Mean. 5164- 4

The comet was lost in daylight immediately after the second measure.

Thalén's wave-length for the less refrangible edge of the green band in the spectrum of the Bunsen-flamehas been assumed, viz. :

tenth-metres "

5164-0

СОМИТ/ 1886 (BAllNARD-HARTWIG).1886, December 14.

Half-prism Spectroscope ; one " half-prism " direct.Observer, M.

Great difficulty was experienced in bringing the comet on to the slit of the spectroscope. Finally, how-ever, a good view of the spectrum was obtained. The three ordinary bands were seen very easily, but none ofthem were sharply defined. A faint continuous spectrum,—whether from general sky illumination, or fromthe comet itself, was not determined,—spread over the field, and much interfered with observation. Thefollowing measxiros were obtained of the sharp less refrangible edge of the green band in the spectrum of thecomet as compared with Mg, of the magnesium, spectrum. The comet was lost in the murkiuess of the loweratmosphere before any measures could be secured of the other bands.

Objectacompared.

InferredWave-length of

Comet-band.

CometMg.,CometMg3

CometMg, ..

Angstrom's wave-length for i»4, 5166-88 tenth-metres has been assumed as the wave-length of the Mg3 line ofMagnesium.



MEASURES OF POSITIONS AND AREAS

S P O T S A N D FACFL,EU P O N THE SUN'S DISK

ON

P H O T O G R A P H STAKEN WITH THB

P H O T O H E L I O G R A P H SAT GREENWICH, IN INDIA, AND IN MAURITIUS,

WITH THB DEDUCED

H E L I O G R A P H I C L O N G I T U D E S A N D LATITUDES.

1886.

OBSERVATIONS, 1886. r> E

34 MEASURES OF POSITIONS AND AREAS OP SPOTS AND FACULTE UPON тны SUN'S DISK

MEASURES of POSITIONS and AREAS of SPOTS and FACULTE upon the SUN'S DISK on PHOTOGRAPHS taken at the ROYAL OBSERVATORY,GREENWICH, at DEHRA DUN in INDIA, and at the ROYAL ALFRED OBSERVATORY, MAURITIUS, in the Year 1886.

NOTE. — The Greenwich Civil Time at which the photograph was taken ii expressed by the Day of the Year »nd decimals of a day, reckoning from GreenwichMidnight, January ï*- ob.

For convenience of reference the Month and Day of the Month (Civil Beckoning) are added.The letter I. signifiée that the photograph was taken in India ; the letter ÏI. that the photograph was taken in Mauritius ; the time given i» Greenwich Civil Time.The position-angles are reckoned from the North Pole of the Sun's Axis in the direction N., E., 8., W., N.

GreenwichCivilTime.

1886.Od '2IO

M.

Jan. ï

1-424

M.

Jan. 2

3-240

M.

Jan. 4

É

Sя

SP, H

.H, SP

SP, H

1*

•eea

íeo

o'M

18191819181918191820l82O«

181918191820«i82ia

1820«1822182218221821«182118211 82 1 г»l 8 2 I

1&

v

M•3

£««H n

o> eu SÍ02

Ioô

0-9830-9750-7090-6480-6350-6200-8910-893

0-8360-8380-8790-8250-7410-987

0-9850-9680-9460-4370-7830-7980-8040-8540-8710-8790-8900-9220-8640-948

3'Л

a£

v

ã5•<.2.8•3 иgo

и

294'2

286-5284-0284-3285-8286-8

75-27 8-4

265-1251-528o-6280-8

74-61 02 -6

278-5252-4294-6

59-395-096-1

103-3102-3103-7102-8

105-2i io- i

74-0

HELIOOKAPHIC

aï•e•1e»3

0

280-3279-0247-3242-5241-4240-1142-1141-5

244-2243-6247-9242-0141-4106-4

243-1239-6231-6141-61 1 2-4I I I'DI I0'4I05-5103-5IO2-6

lOI ' I

96-8

104-9

94'3

a•|^

о

4-23'c

+ 15-3+ 7-5+ 6-6+ 7-3+ 77+ 1 1 -6+ 8-8

— 6-0-17-4+ 77+ 6-9+ 9'°— 13-0

+ 77— ï 8-0+ 21-8

+ 9'5- 77-- 6-2

— 7'i-I3'3-12-6-13-8-13-1-15-4-19-2+ 13-9

SPOTS.

ss(H ЧЧ

selffl-^Я -gö£•8*Ç£ SO

•<)

IOо0оо

10

(20)

'3о8

12

(33)

7ïоо

78оо

1 1о

(97)

II

О'—'

Ц•S^çH ^^о

6525

444

164(266)

62

864

4°3(537)

32u

74

4723212

956

(671)

FACUL-Ж.

g-

CS.Jílí

Sa

•м-— •о

131236

1>122C

J'(f 333''"

(822)

43209234'"

85c325«

(896)

62516949

)\ 3 f)c\

Л

U 86.f

JIO2

604

(2174)

GreenwichCivilTime.

1886.

4"'492

Jan. 5

5-216

M,

Jan. 6

6-148

I.

.11я

H, JH

EP,H

H,BP

.

10

TJ

*

f0

á«!Й

l82O«

18211821-18211821«182118211821^

1820«1821182118211821«1821182118211 82 1 Ъ

1 820«1823182318231821

i£Û

lá^тз

í ш

S "9at«»"gQ

0-2480-643О'ббо0-6690-6750-6990-70407380-833

0-983

0-9370-9420-2430-5210-5470-5400-5520-5590-5840-5910-6330-8150-9330-9130-951

0-9710-3620-0550-0280-0490-340

'9СИ

g1

ТоЯ

||

(ь

0

22'5105-21 1 1-IIO2-2

Ю7'1Ю4'о105-8Ю4Ч

71 "6

252-6260-5284-9344"9107-0и 47юз'8I I O - I

io5'iП4'8ю8-6Ю5'9

66-661-786-164-9

251-9309421 1-6

177-0'33'9I I 5 - I

НЕЫООПЛРШС

oîТ5

5§J

о

141-6107-8Ю7'3» O S ' SЮ5'5юз'Зюз'1IOO-I

93-1

21742О7'1

2OÓ-2

141'2107-01064Ю54Ю5'3104-2юз'9Ю2'4

99-086-373472-0

бд-о

2О1 -91417127'О125-2

123-3Ю7'о

13J

0

+ 9'5-12-7-l6-6

— iro— 14-3-I2-5

— 13-8

-13-2

-t- I3'O

-I7-8

-10-3

+ 12-7

-t- 9'6— I 2 - I

-16-5-10-7-14-2— iro-174-14-1-13-1+ 164+ 24-6+ 2-0

+ 22-4

-18-6+ 94- 6-7- 5-6- 6-0— I 2 - I

SPOTS.

•8 «2

K e

И-2-

olUï*g ia•4

4oo8

54oo

14(8o)

5i2

36o

Ooo8

(79)

i3o3o

Ilн TIi-З So-SИ«

rt *H я*£ ЗД0

17'3'748

4°48

12

63

(582)

1024H22

34632

377

(Soi)

785

i62

FACUL^Î.

g.

u|Ç

"II3 á

3

• \$гг,

J306

(438)

1141 1 1

50

2169368

1 31

(783)

148

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there in a Faculaunaccompanied by a Spot. The positions of Facultn relative to the Spots with which they are associated are indicated by the letters я, к, j>, f. r, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Facula; are expressed in millionths of the Sun'« visible Hemisphere.

Group 1819, 188; Dec. 25-1886 Jan. 2. Three small spots on Dec. 25 ; two small spots on Deo. 26. The group has expanded by Dec. 27 into a short straight streamcomposed of many «mall spots. The stream tends to form two compact clusters of spots, and by Jan. 2, the following cluster has disappeared and the precedingcluster has become a regular spot with one small companion.

Group 1820, 1885 Deo. 31-1886 Jan. 7. A regular spot, n, which diminishes in size from day to day. A small companion is seen near it on Jan. ï.Group 1821, Jan. 2-15. A large regular spot, a-, with two nuclei. The northern portion of the spot, containing the smaller nucleus has become detached from the

principal portion of the spot by Jan. 5, and has broken up into a number of small spots, n. is followed on Jan. 4 and the succeeding dayi by a fairly large spot, b.and a number of small spots. Small «pots are also seen preceding n 'on Jan. 5, 6. and 7. b hau divided into two portions, ï: and d, by Jan. 7. с Ьан dinappoaredby Jan. lo.

Group 1822, Jan. 4. Three small spots.Group 1823, Jan. 7-ю. Three small spots on Jan. 7 and 8. Only one is seen on Jan. 9, but two on Jan. 10.

ON PHOTOGRAPHS TAKBN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 35

Measures of Positions and Areas of Spots and Faculro upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.6''-I48

I.

Jan. 7

7-216

M.

Jim. 8

8-196

M.

e£

Я

H, KP

н,ш?

ИР, M

1

h4

1nft

и

i*182118210,182118211821182118211821î 8 2 i d18211824»18246

1823182318231821«182118211821i 8 2 i e182 irf182118247.)18251826«18262*18260

182318211821«182118211821

I

.S

1Ss°âКs "g9<я1*8

0-3500-3750-3570-4190-4410-4200*431°4550-47004730-5390-5780-8460-8770-9380-9480-964

0-3030-2550-2230-1980-271o'i 500-2240-2540-2710-3020-4100-8360-9570-9860-9920-8540-856

0-4800-189O-22O

0-I58

очбб0-183

iза

1*И

V

íя .

I1

о

1 1 I'D

I 19-3

I07-S

I27-5

128-5

I2O-2

I I 5 - 4

I I O'4

II3-3

I I O*4

59'960-354-070-989-599-072-0

261-8261-8263-1154-3160-7146-3139-8128-0132-0131-043-498-992-893-394-386-669-7

265-0227-9218-3238-2198-8178-7

НИЫОвНАРШС

I

о

i°5'91057105'2

Ю4'9юз'9Ю3'2

Ю1'799'599-098-з9б-9944

66-6. 55-8

53-752-9

128-7125-8124'О

юбч105-8Ю54Ю2'7

99499'397'б94454'538-130-828-452-9SS'2

126-9юб'5юб'Зюб-1ioi '498-0

«тзJhi

о

— I ГО

-Ч'З- 9'9— 18'4-197-15-9— Ч'З-12-7

-Ч'З-I3-I+ I2-I

+ I3-2

+ 27-3+ Ч'б— о-д- 9'9+ l6'2

- 6-4- 6-0— 5'°"-Ч'З

-II-3-13'9-13-0-44-154+ '34- 97- 3'9- 4'о- 4-8+ 0-8+ Ч'о

- 6-1-11-4— 14"о- 8-9

-13-2

-4'7

SPOTS.

SS '«H «н

'"''ааз4-"

аи•g -í."S Q

676

О

2

О

2

2

I I

I I

О

0

о

(i i7)

3оо

48ооо45оо0

91бо

(85)

0

0

570

оо

IIHTaO-— •И«££•M .

ill

32340

2

152

4186376

2

43

(599)

9154

34312Z4

7177512

IO

497

22782

(938)

78

33662

25

FAOUL.S3.

f

Оja "Г;

láч Йl-s

l1

90чз62156228

(837)

76,,-i1

39287

GroonwiohCivilTimo.

I886.8a- 1 96

M.

Jan. 9

9-155

I.

Jan. lo

10-210

I.

f

lBí

BP,M

SP, KP

KP, SP

31'S

ísCS

•°|

l82ic;l82lrf

1824«:1826«18266

18261:

182318231821i82ir t18211821l82lrf

1821182401826«18266I82ÓC

1826

1827«182718271821»18211821182 1(118211826«18266182618261826,,-

1.3ïIsul

Jis gs°

0-1460-1740-2780-8660-9250-9420-903

0-8330-6660-6270-3650-3780-3520-3790-2790-2700-3420-74°0-8230-8540-8580-923

0-9590-8340-8380-6970-6550-6490-5830-5670-4860-4820-458°'5540-6580-6730-6960-698

132

|

•«

V

ta .1-яS""6

o

187-0185-1

0-392-392-293461-8

281-4265-2264-7249-1243-0243'5233-7232-1220-7323-6

91-691-392-293'995-3

283-3264-3208-8258-5256-92S9'3251-9244-6251-5248-2243-3

91-290-493493491-5

HELIOGRAPHIC

<£

•ь§

0

99'399-298-238-330-727-938-6

140-8127-4124-5106-0105-9104-5104-298-796-297-638-030-227-126-617-9

437128-2l l l ' O

115-6I I 2 - 2

I I2-O

106-4

104-1

99-899-196-838-130-629-427-6

4Ïтзs'•g

о

-12-5

-I4-I

— 4'2- 3-6- 47+ 23-2

+ 7-0- 6-4- 6-7

-13 '9-I3-I-17-0-14-0— l6'O

+ 117— 4"2

- 3'5

- 5-6- 6-6

+ и '4— 7'2

-50-5— in-II-9-10-3— 14-0-17-8-12-7

-14-2-15-8- 44- 3-6- 5-6- 5'5- 4'2

SPOTS.

Il^Tâ00-2-

*îil!

0

4о

2O

446

(130

0

оо

71

оо8о0

3^So90

(«74)

2

0

0

73оо2

О

24

44оо4

IlS тзSIan•g"0-§11

2

66

3I II239103

(908)

2

2

3284

2

3140

21

4158230

49i i

(909)

б!

136

3 « 592

73i l

45254

12

455

FACUL.S:.

1О•gS

|«2

j!

884<-

123(1007)

158

75'1

)4856-

)690

(408)

12915642

)*• IOOC

j()

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, .',;>,/, c, denotingrespectively north, south, preceding1, following, concentric.

The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hemisphere.

Jan. ii. Photograph faint. Faoula) ill-defined.Group 1824, Jan. 7-ю. Two very small spots, a and ft, on Jan. 7. The preceding spot, a, has disappeared by Jan. 8, and the following, ft, by Jan. 9, but another very

small spot, c, has appeared in the neighbourhood.Group 1825, Jan. 8. A small spot.Group 1826, Jan 8-17. Three regular spots, n, ft, and л a has broken up into a number of small spots by Jan. 13, and о has disappeared by Jan. 14. A few small

spots are seen near the principal spots on Jan. 11, and the succeeding days.Group 1827, Jan. 11-13. A spot, a, followed on Jan. n by two small spots. Of the latter one has disappeared by Jan. 12, and the other by Jan. 13. Another email

spot is soon near a on Jan. 12.

5 ЕЙ

36 MEASURES OF POSITIONS AND ABEAS OP SPOTS AND FAOUL-Ж UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Faculae upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.IOd '2IO

,

'

Jan. 1 1

1 1-231

M.

Jan. 1 2

12-266

•I.

îiя

BP,SP

H, EP

SP, H

1

3'O

£ôli-fc

1826

1827»182718271821«1821^18211826«18266182618266'1828182818281828

1827«1821018211826«!826

I826&I82ÓC

1828«18281828182818281828182818281828

i.aJIs

1•ip »f 1Ie0

J 'SФ

0-7100-8440-948

0-9300-7660-7160-8470-8320-8080-744О'ббо

0-6410-3400-4560-4760-5040-4880-5230-5300-5720-888

0-8150-9520-8790-8030-1160-1480-2370-2880-2540-2830-2790-3120-3190-3370-3430-3490-377

1

1•Д

Ф

Ía .

13&

o

95-192-6

103-9

206-22507260-3260-4262-1261-0255-9254-4251-9

89-688-091-190-6

103-3102-8

99-2101-3106-8

290-9259-1256-2254-2

87-7104-4

84-989-9

117-3118-4112-1

I I 5 - O

I04-3

I 124

I08-3

lOI ' I

106-7

HELIOGHAPHIC

о)

1

о

2б-5

H'1

359'9

126-7107'S103-9I I 6'2

II4-7

I I 2 - 2

I об'О

99-0

97'2

38;s29'928-129-5

26-5237

355-8

96-2117-2106-3

97-838-136-4

28-031-530-029-528-026-626-225-424-523-3

6•o

e3

О

- 6-7- 4-6— 14'6

- 5-2-17-7— IO-I-10-5- 9'i— lO'O

— 13-5— губ-15-0- 4'2- 3-1- 4' 5- 4'2— 10-4-10-5- 8-7— IO-I— 16-9

+ 14-0-II-8-14-4-15-4— 4'3- 6-7- 3'3— 4'4— I 1-2

— 12-2

— I0'4

— I2-O

- 8-9-11-7-10-5- 8-2-10-5

SPOTS.

е ё<М<Й

<jr^M!

el.ч-с02^

*1д•3

о

(49)

17о2

62

I.

I

20

33I43о77

(158)

"764

о5о

4°ï

33ооо

21

I

О

о0

Ji-SНиз

gl

|

jll•4

IO

(970)

1066

26317

315

117224

163828

73735

(993)

122

345168626

257• 13165

412

88813

i6

53

FACUL-Ж,

ft

rh

•si?*

I"2

si•3

44154

047)

14010762

}> in с}

71

(490

337

l ЙЙОf

Greenwicl:CivilTime.

1886.12Л'2б6

I.

Jan. 1 3

'3-524

Jan. 1 4

14-257

M.

sIя

SP, H

H, JH

SP,BP

1

1'Sge6

il1

182918291829

1821018261826^1828«182818281828^18291829

1821«18261826182618261826182618261826018261826182801828182818281,828/;18281828182818281829«18291!*

i

.9

"S Ш

o|

«H соf g|cobД

0-9670-9670-9740-959

0-938

0-9730-1960-0630-1310-1420-1250-08 10-8350-873

0-977

0-9540-997

0-3850-3610-348

0-3430-2970-2530-2320-224O-222

0-184

0-272

0-2I7

O - 2 I 2

0-I92

0440

0-153

0-I52

O-I29

O'! I I

0714

0732

1со

1«H

tt>'ьЬ1и:| -áРн

0

78-079-179-8

102-5

286-0256-6274-7294-7217-9198-5186-7154-2

76-677-2

256-7287-9256-1272-7273-1265-3271-7263-7273-9283-4276-8287-8284-5247-8241-8235-0236-1242-3233-6220-1

222'7

225-0

734

HELIOOEAPHIO

a!1

«

o

330-9

3307329-0

330-8

957105-2

39'331-432-830-729-026-1

333-1328-8

96-988-8

105-141-239738-938-635-833-231-631430-828-833'429-828-827-925-825-724-323723-1

335-0333-8

v"OS

á

o

+ 10-3

+ 9'3+ 8-8-I3-3

+ 13-2-14-1- 37— 3"2— IO-6-12-4-II-8- 8-9+ 8-5+ 8-8

— 14-0+ I5-5-4'3- 3'4- 34- 6-2- 4-0

- 6-5- 37- 1-6— 3-2- 0-9— 2-1— 10-6— IO-6-II-7— 10-9- 8-5— lo-o-11-4— IO-2

- 9'3+ 8-3+ 9'5

SPOTS.

ë e•H 'S

""'U

P S.<t-|M^,

sll•5

ooo

(182)

180

1877

o0

0

46

(123)

oo0

oo0.

3o

250

0

68o60

12

3ooo

I I4

е ё«S «8HTJ

öl

<я

ato•Ч

339

(1305)

17053

155411

9

17499

125

(1227)

IOO

IO

I I6

186

282

134

52

476

29IO

. 5159

28432

5774

FAOULA:.

P.

C5

•s "iIQ

•l44

s!•5

)> 241 с)

221

(487)

2OO

338 с

1256 '

(ббз)

333244

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faculaunaccompanied by a Spot. The positions of Faculaa relative to the Spots with which they are associated are indicated by the letters n, a, j>, /, n, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculte are expressed in millionths of the Sun's visible Hemisphere.

Jan. 12. The image of the Sun on this photograph is decidedly elliptical. The positions of some of the spote appear to be affected to a small extent by distortion of thephotographic film.

Jan. 14. Photograph faint. Facuke ill-defined.Group 1828, Jan. 12-2Г. Several small spots on Jan. 12, arranged in four clusters. The group increases in size very rapidly. On Jan. 13, it consists of a large

regular spot, a, followed by a scattered stream composed of many spots, mostly small, a has very greatly increased in size by Jan. 14, and most of theemail spots following it have coalesced to form a large spot, b, b has broken up by Jan. 16, but the small spots have coalesced again in a differentmanner, to form one large spot, c, by Jan. 17. о has broken up by Jan. 19.

Group 1829, Jan. 13-22. Three spote on Jan. 13 ; flve spots arranged in two clusters on Jan. 14. The two spots, a and I, which form the preceding cluster,have separated a little by Jan. 15 and are measured separately- The following cluster has broken up into a number of small spots. The group extendsin longitude on the succeeding days but diminishes in area, b has broken up into a number of small spots by Jan. 19. Only a is seen on Jan. гг.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 37


GreenwichCivilTime.

1886.

4d'257MJYL.

Jan. 1 5

I5-45I

Jan. 1 6

16-541

Iiя

SP,BP

H,JH

H,JH

11

1f

^Ó«!

fc

18291829

182618261826211828»18281828182818281829«182918292»182918291829182918301830

182618262»18280.182801828182901182918292»18291829182918301831

i.9V

í'uId

il.i'SQ

0-7690-7850-892

0-9210-8230-5960-5150-4830-5110-4530-4350-4090-3750-4970-5050-5220-5360-5650-5820-5990-9670-9770-9490-951

0-9080-7180-6910-7030-6300-5880-3090-3040-3270-3620-3900-4020-8710-933

"I&|

•ti

-ãI

l-ár0

74-873-994-8

28772587269-7270-9271-5257-9254-72597256-1259-5

63-066-463-767-567-465-667-490-992-368-696-3

290-1269-9270-2260-5260-8263-8

37-844-044-051-249'553-089-794-2

HELIOGUAPHIO

.

0>

fJ

о

330-2328-9315-4

67458-239'333731-633-229-128'420-524'6

ззб-з335-1334-6ЗЗЗ'оЗЗ 1 " 1

33°'4328-9287-7285-2294-3290-6

50-534-131-932-927'3

337-333б'1335-1331-8330-93294287-9279'3

о!-О

'•§

^

о

+ 8-4+ 9'5- 6-5

+ Ч'2— I2-I

— 4'2

- 3-7- 3-6— 10-3— ц'З- 8-9

— 10-2

- 8-5+ 8-6+ 7'3+ 9'1

+ 7-6+ 8-4+ 9"8+ 9'2— 2-1

- 3'3

+ 18-5- 7'S

+ 15-9— 3-6- 3'5— IO-2

- 9'7

- 77+ 9'2

+ 7-7+ 8-7+ 8-3+ 9'9+ 9'2

— 2'2

- 5-8

SPOTS.

е ёмЗчч

Ш •— '

Я Ф

'S*-

S*! •*"

•Ч

34

(49)

35

20

7050

20

58о

10

о60

ооо

(152)

о3

б4

13О

42

72

0

О

оо

II91оЛw

"*•£§ §á<

850

(1233)

3523

123

684

89

743123582118ю3421

22

(ибо)

I I

«4482466

8Чn43

84

315

Ч

FA.OULJE.

g.

о .•s frleël44 ч

§1•ч

382Г124

(ю83)

124

107

'94е

237148

(8ю).

92

364"'|+бб-

Greenwich

CivilTime

1886.l6cl'541

Jan. 17

18-508

Jan. 1 9

19-514

Jan. 20

20-142

I.

Jan. 2i

21-213M.

Jan. 22

22-239

M.

Jan. 23

8

iЯ -

H,JH

H,JH

H,8P

H,1P

SP,H

KP, H

1I

1íSо

àXLfc

i8z8a182818281829«182918291829

1828«18281829«1829182918291829

18281 829a182918291829

1829«

18321832

i.g

lila

•fc^BI

о а

•S 2.Я оa

0-8780-8490-9470-982

0-9370-9310-9020-8840-3680-3550-3210-327

0-9290-9900-9650-5480-5290-5380-5010-486

0-9970-6600-6470-6350-6190-8270-902

0-9830-815

0-8990-8520-1620-147

img

*

UI

I.S

ï*о

63-096>969-987-8

270-0261-1262-7261-8312-63I3-5312-1320-0

269-4260-7261-4297-2295-9300-1298-7302-9

259-9291-3293-0291-1292-8757

110-3

262-2285-9

283-2251-3255-1248-3

HKLIOGRAPHIC

11

•2

о

291-7290-1

'279-9269-6

31-931-427-1

24-8338-4337-6336-3334-8

1773172.4-7

339-0338-2337-7335-8333-9

27-23394338-13377336*2247-0236-6

,

6-83394

335-6331-6282-4281-2

.B1л

o

+ 20-S

- 8-5+ 17-2+ 1-2

- 1-8— IQ-2— 8-8- 9-6+ 9'5+ 9'2+ 74+ 9'5

— 2-5- 9-8- 9'7+ 10-0

+ 8-8+ 1ГО

+ 9'2+ IO-6

-10-5+ 9-7+ 10-4+ 8-9+ 9-5H- 87— 20-6

- 87+ 9'6

+ 9-3-18-8- 8-0- 8-6

Вгота

е ё«s «s.<«к SЯ-g

A >*

•ч

(95)

24о

IO

0

ооо

(34)

2712

2

О

О

О

о(40

о4ооо

(4)

2

(2)

О

О

(о)

II910-S-W

•SÍ15§ $Q•<

(1181)

46149

1408745

(674)

4488293352

(552)

loi

13

420

5

(203)

7<7)

6S

('О

FAOULAÍ.

P.

Ô .

•s fr1«

**§1•ч

4i175152

101

(1171)

8o( ,j

(342)

123

| 531"/

(654)

9520-

313122

1И9У)-\i 9Ô*T]

Ц9544«

(539)

34179

(420)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Fnoulaunaccompanied by a Spot. The positions of Faoultu relative to the Spots with which they arc associated are indicated by the letters w, B, p, f, c-, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faoulm are expressed in milliouths of the Sun's visible Hemisphere.

Jan. 16. Photograph faint, Faoulro ill-defined. Jan. 19 and 20. Photographs very faint. Spots and Faoulro ill-deflued.Group 1830, Jan. 16-17. Two small spots on Jan. 16. The following spot has disappeared by Jan. 17.Group 1831, Jan. 17. A small spot. Group 1832, Jan. 23. Two very email spots.

38 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULTE UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.23d'545

Jan. 24

24-154

T

'Jan. 25

25-423

Jan. 26

26-475

Jan. 27

27449

Jan. 28

28-164

I.

Jan. 29

29-263т

Jan. 30

30-231

M

Jan. 31

.

1я

H,JH

H, EP

H,JH

H,JH

H,JH

BP, H

SP,H

SP,H

1fes0scC

0

^tgco

1833«

18331833«

13su)»3

1§|«

i "ÍIм

.2*0Д

0-9790-966

O-giO0-8240787

0-887

0-916

0-851

0-973

0-950

0-9130-827

0-950

0-800

0-88 10-927

0-9350-9070-8700-8580-967

0-9120-9610-973

0-8740-8800-937

'aUJ

1Ч-.

vTb<§ «

'•§ иS-4

CL,

O

280-1253-0

262*2287-1303-0

264-5296-4269-2

295-1268-0288-7274-8

75-1•

294-972-1954

291-3273-5252-3282-1101-6

280-6103-6

75-5

105-9103-4

72-3

HELIOGBAPHIC

f

%

0

333-1332-1

314-0301-3293-1

294-1293-0289-7

290-2289-5280-7273-0148-0

259-5145-6136-5

261-1260-0256-0252-9119-5

2454106-3106-4

106-91 06-1101-3

i1J

о

+ 8-7-i7'9

- 9'5+ IO-6+ 21-3

- 7'5+ 21-4- 37

+ 22-7

- 37+ 44+ 0-7+ 12-2

-f I/-8

+ 12-7

- 7'3

+ 174+ 0-7-18-3+ 7'i-127

+ 7-1-H7+ I2-6

— 16-9-14-7+ 14-2

SPOTS.

В 0«H ЧН

«•J-тз

SiPS.

CG

°л£

•<

(о)

(о).

(о)

(о)

(о)

(о)

0

(о)

о21

(21)

IIНтз

g!Êt =

gif•Ч

(о)

(°)

(о)

(о)

(о)

(о)

196

(I96)

6161

(167)

РАОПЬЛ.

gО

"S и'SQ

»e

«•i

23293

(325)

цо8o

151(370

9°170

52(312)

23554

126156140

(711)

43124146

(313)

152786o

207277

(774)

200'296 с

59(555)

)f 394 >'

297(691)

GreenwichCivilTime.

1886.3id48o

Feb. ï

32-289

I.

Feb. 2

33-280

I.

Feb. 3

34-567

Feb. 4

35-I48

I.

iи

H, SP

H, SP

8P,EP

H, SP

H,EP

«SK

1J

'OS

£

U~,*i11fc

1833«

i8331833183318331833«1833

18331833183318331833018331833

18341833183318331833183318331833«1835«

183318331833

1$.g

Ч »

°l|м

ilя

0-716о-763

0-7720-886

0-8960-5180-548

0-5780-5680-5780-6010-8100-968

0-2970-3230-3530-3830-3920-4190-4200-8810-91 1

0-0750-1580-175O'l6l

0-1770-1890-1810-1670-9670-8980-902

0-3380-2470-248

"ice

1•И

44

J -áP«

о

i°4'9114-2

99-867-9

253710971 10-4114-8109-9107-2113-0634

100-3

I 2 I - OI2O-2I2O-OI 17-0112-7120-8113-665-,lui -6

261-9202-9

193-5187-1178-6175-1160-6150-898798491-6

228-0236-2229-6

HELIOGBAPHIC

ci-О

fо

юб-iЮЗ"!1O1-O

93-1

205-2ï ю-8108-9107-5107-4106-4105-5

92-064-9

I I 2 - 8

I 11-2

I09-5

107-3

Io6-2

IO5-8

I04-6

70-8

61-8

115-4114-7I 1 3 - 51 12-3i IO-8HOT107-5106-3

35-346-846-6

118-8115-6114-7

V

1

>3

о

-15-0-22-4

-II-5+ 16'3

-17-4-I5-5-16-3-I9-3-16-3-15-0-18-7+ 17-2-n-6

-14-9-15-4-16-2

— 15-9

— 14-6

-18-2-15-4+ 18-4-13-2

- 7-0-147-l6-2— ï 5-6-ï 6-6-17-2-I6-2

-47— I0'0-10-3- 4-3

— 19-2— 14-1-15-5

SPOTS.

Il•«jnag!ëî***•Ч

23

(23)

4iо8

28

о

(40

5оо9

' 30оо

(44)

о0

4оо2

3

1545

(69)

оо7

M ь0 О

W"b

giW -g

s so•ч

I 82

(182)

3i5

12

19l66

13

(246)

20l6

IO2O

142

56

(219)

•35

342

52912

126

441

(667)

53

53

FACULTE.

f

СЬ .

ь*

il•3

10367

243(413)

125

109163

(397)

162270

(432)

3426-222316

(88o)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faculaunaccompanied by a Spot. The positions of Faculae relative to the Spots with which they are associated are indicated by the letters w, »,2>,f, Л denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculse are expressed in millionths of the Sun's visible Hemisphere.

Jan. 24. Photograph faint. Jan. 35. Limb ill-defined. Jan. 26 and 28. Photographs faint. Faculto ill-defined.Jan. 30 and Feb. 2. Photographs faint. Limb ill-defined. Feb. 3. Photograph very faint. Spots and Faoulic ill-deflncd.Group 1833, Jan. зо-Feb. ir. A large regular spot, a. Two very small spots, close together and measured as one, accompany it on Jan. 31. A number of small

spote are seen near a on Feb. г and the succeeding days, forming a fairly straight stream to the south of a, and for the most part preceding it. The group slowlydecreases in size from day to day, until on Feb. ю only a, now quite a small spot, remains.

Group 1834, Feb. 4. A small spot.Group 1835, Feb. 4-16. A very large regular spot, a, which slowly decreases in size after Feb. 8. On Feb. 8 and the succeeding days until Feb. 14 a number of small

»pots are seen close to a. a has divided into two portions by Feb. 14, but these are measured as one as they are very close to each other.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886.

Measures of Positions and Areas of Spots and Faculsa upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.

35"-48

I.

Feb. 5

36479

Feb. 6

37-239

I.

Feb. 7

38459

Feb. 8

«1я

Н,ЕР

H.JH

8Р,Н

Н,8Р

11ч

1tí

rtrо

о'«!

1833183318331833«1835«

183318331833«18331835«

1833183318331833«1836i835"

1837«i837'j1833183318331833«1836183518351835"183817.1838/;

§-S.9

P ч

*Э

IIII! 'Sn

0-2190-212

0-184

0-154

0-932

0-859

0-894

0-507

0-444

0-3750-358

0-777

0-893

0-6 1 6

0-5860-5850-5210-4020-6580-7830-821

0-9310-7860-8390-8120-8220-8000-7720-7260-2370-3760-4020-4220-4000-4440-976

CO

§W

|•Й

'"i.|

iä'и .43

СЧ

O

211-5205-9201-5199-1

97-698485-1

253-5244-0246-4245-7

97-396-3

250-6256-5248-6252-0

55-396-9109495-5

283-9296-3266-3266-9258-3255-5253-3256-3

4-698-791-398485-085-679-2

HELIOGUAPHIC

13

5g

о

1IO-2io8'91О7'4юб'4

34-243-84О-6

115-8ï ю'5юб-61О5'5

34-622-3

I I 3 - I1 I I - 5ï ю'5юб'5

5б'434'524-52О'4

126-4юб-8I I 7 - IM 44I I 5 - 5ИЗ'2

по'4юб'4

58-837'9зб-i35-036-5337

344-1

oî

1'иJ

о

-17-1-174-I6-Z

-47- 94-10-5+ Г5

— 14'о-17-2-47— 14'6- 9-8- 8-5

-17-0-I3-I-177-4'9+ 7-0- 9'5— 19'2

- 8-2

+ ю'4+ 15-9- 6-7- 6-4-134-,5-6-17-1-44+ 7-е- 94- 6-6- 9]5

- 4-0+ 8-9

SPOTS.

е ё•И Чн

<*.Ъо* аИ~Я-е1=8.•S50 •e1*§30

•3

0

оо

1675

(98)

ïо

и4

52

(68)

ооо96

I2O

035)

оо32

479ïо

7062

(104)

IlИ 'SJ 5o-iШч.

^1•M

-1frË SO

^

2334

FACUL^K.

s-tí_ *Г-

lã1-8S ^«ï

GreenwichCivilTimo.

аб.

•<, /'449

118476

(685)

20

468"7

449

(558)

874

8341

498

(641)

73

13u44046

33

4471615

16 18)

/—-.»5— '130

(1213)

2031;618

(821)

í 19 с94

58o(893)

47282

18 с27 С

)342 f

)

248(1064)

- У Ч У/~>s

Feb. g

40-150

I.

Feb. lo

41-151

I.

a

fe

gя

H,M

SP,H

H,KP

13í!>rt

fÜ

°1aœ

1837«1837618331833«!18361835183518351835«183518351838«.1838^

183718371837/11833«18361835183518351835«18351838183818381838

1833«183918361835

is.a

lá« gõ*"

]Иli9о2.S 'SО

0-8890-9410-9210-9420-858О'32О

0-1460-1590-159О-2О7

0-2450-265o-i680-2410-919

0-9460-8630-9840-9740-9670-9260-4480-051О-О22

О-О22

0-061O'OgO

0-056

0-038

0-042

O'oSl

0-848

0-8680-935

0-9120-7580-9810-6820-6290-266

i1I

•яш

1

•Ц§Н

Рч

о

289-8265-2206-3

258-425743i6'3109-1102-4

92-5105-2

98-2100-3

77'*8о'3774

286-7294'2

263-32034265-0256-6299-621 6'2

253'52О4'1

45-61074331-6345-8297б4'767-377-1

ю8-2

Z94'3303-0256-1263-8289-8262-9

HELIOORAPHIC

' Îgо

юб'ЗИ7'3114-1ii" '9юб'з

59-638-837-837-635-232731-637433-1

341-9

юб-192>9

И7'9I I 5 - I1 13"61Об-2

6о'739738'938-235732739-238-236-533'5

343-7339'3327-6

85-866-7

104' 567-7бо'939'9

»5

1i

о

+ 4-3- 6-7- 6-0-13-1-4'2+ 6-9- 9'3- 8-5- 7"о- 9-6- 8-4

- 44- 4'г+ 8-8

+ 134+ 17-0- 7-8- 8-0- 6-6-15-0+ 6-6- 9'1- 7-1- 7'9- 9-6- 8-2- 3'9- 47- 4'7- 47+ 15-2+ 77-194

+ i8'9+ 19-5-4'9- 9-2+ 6-9- 8-4

SPOTS.

Il•"'SCc5 Ч

g^

S}u so

•3

83646oo2

67

O

O

o0

(96)

oooo2

O

o0

83o0

0

oo

(85)

0

3oo

IIH-e*Э B0-2.

SlÏÎ*g SO•3

6633442416ii47

442

376

(637)

25n413n

S5

17409

10

n766

(550)

18IO

64

FÁCVLX.

0,

Oja ^So

"" 'SЙ |§-=••3

» 5 5

2OO(-

298«;342C

248(1243)

138

265 к45 ic-

103278194

(1560)

15062

296 r.

Tho Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulnunaccompanied by a Spot. The positions of Faoulm relative to the Spots with which they are associated are indicated by the letters n, t,p,f, o, donotimrrespectively north, south, preceding, following, concentric.

Tho Areas of Spots and Faoulm are expressed in millionthn of the Sun's visible Hemisphere.

Group 1836, Feb. 7-1 1. A single spot.Group 1837, Feb. 8-ю. Two very small spots, a- and 1>, on Fob. 8. Both have increased in size by Feb. 9. Tho tfroup consiste of three spots on Feb. 10, of which one

appears to be identical with ft, but the other two appear to be fresh outbursts.Group 1838, Feb. 8-ю. Two small spots, ч and b, on Feb. 8 and 9. They tend to separate from each other on Feb. 9. By Fob. ю they have broken up into a number of

very small faint spots, hardly distinguishable from the general mottling of the Sun's surface.Group 1839, Feb. ii. A small spot.

40 MEASURES OF POSITIONS AND ABBAS OP SPOTS AND FACULTE UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Faculse upon the Sun's Disk — continued:

GreenwichCivil

Time.

1886.4I ( 1-I5I

I.

Feb. u

42-180

I.

Feb. 12

43-170

I.

Feb. 13

44-186

M.

i2

iя

H,BP

8P,KP

H,SP

BP,H

3?rJ

-gs§ô•S g.á'

1835«i8351835184018411841

1835«1835184018401840184018401840184118411841

i835a18351840184018401840184018401841

1835«1840

i.Э

1Mp W

11o

0-1980-1630-1310-0360-9100-919

0-9630-4220-3790-2720-2680-2570-2480-2260-2160-7920-8020-8160-972

0-9440-8630-8250-6190-5740-4900-4720-4480-448

04390-4250-6230-9180-900

0-9090-7740-679

i02

gZ

<H

Tc

•3

ЦЯн

О

255-12бо-8256-469498-699-6

272-9261-9404" 2

269*6

271-5277-027°4270-2276-3

96-599-699'994-1

202-6

2 8 I - I

269-02634265*2

2724268-1

26972734267-5271-3

97-06з494-1

2637263-3271-2

HELIOGBAPHIC

cî

'1яS

0

35-633-831 "922-6

318-5317-2

84-8

35'9ЗЗ'З2б-7

2б-5

25725'324-0

23'3

318-2317-2

294-2

6o-i56-0534Зб-2ЗЗ'о27-126-1

24'5

24-323'923"О

3I9-I296-4

50-2

35427-1

1'-S

â

0

- 9'5- 8-1- 8-4- 6-0— ю-6-11-4

+ 0-9- 9-6- 8-5- 6-7- 6-2

- 4-8- 6-5- 6-6- 54- 9'3-1I-7— 12 'О

— 5'6

- 9'3+ 6-0- 47- 94- 8-4- 4-8- 6-9- 6-2

- 4-6- 7'2

- 5-6- 97+ 2 I - I

- 6-7

- 8-6- 9'5- 4'3

SPOTS.

0 0<Н<Н

«<*тз§1

§1

Jlf

77ооооо

(8о)

83б0

о0

о0

оооо

(«9)

87о

IOI3о0

оо

(101)

52

5

s e«м «H

HIB0-1

i*U

ïîl•5

4035722

439

(536)

39°64

6ï4365

2342

(508)

4251370

615

I

383

(544)

33326

FAOUL-Ж.

o,g0 .

•g fSQ

S3

iï•4

)í 172£

(68o)

53

IO2C

194(349)

i65140210

2OO135

(850)

618690

GreemriohCivilTime.

1886.44d*l86

M.Feb. 14

45-250

I.

Feb. 15

46-186

I.

Feb. 1 6

47-251

M.

Feb. 17

48-181I.

Feb. 1 8

49-277

1.

Feb. 19

50*162

I.

шс

я

ВР,Н

H, M

ВР,М

H, M

H,SP

Н,ЕР

Н,ВР

11гЗ

•s§10

•stО«á

184018401840

18350184018401840

1835«184018401840

1840184018401842

1842

1842

184318431843

ã.9£a A«JJ«siизоf -gQ

0-6310-6270-621

0-9610-8310-8410-9250-9080-8590-8190-790

0-8920-9760-9460-9260-9100-923

0-9940-9890-9780-978

0-7720-915

0-8780-7940-870

0-934

0-8870-7960-2400-2600-264

i02

g

P«H

Tb•S§ ч

13h

o

269-7265-8268-1

276-8258-7242-9262-4263-0269-2267-6266-9

2777261-9267-8265-9

79-0

267-1264-6262-9104-6

284-9104-7

284-7106-0

79'5103-4

250-02бГ1

119-4

I21'4

I I 5 - 2

HÉLIO« ПАРНЮ

â

J

0

23-623422-9

43427-026-838-636-129-725-622-8

20-336-329-426-324-0

252-4

27-926-122-7

225-1

340-3224-8

336-6

224-6218-4207-5

328-7318-8

253-32 5 2 - 525Гб

1Ã

o

- 5'5- 8-0- 6'6

-f 4-6-13-2— 26-4- 9-6- 9'3

- 5'9

+ 3'6- 94- 4'4- 6-5- 7-1+ 74

- 3'7_ 6-4- 8-4-I5-7

+ 6-8-16-3

+ 9'3-17-1+ 5'5-15-0

— 2ГО

-114-137-147-13-3

SPOTS.

SS«H«a

"JrO

я-p £,

«il•Ч

Iо6

(64)

66ооо

(66)

53064

(63)

0юо4

L**T(/Ч'

4(4)

7

(7)

ооï

o s•H «M

«•в

o-âÍSS.

ölt•Ч

174

28

(4о8)

S"38

S12

(366)

2591330

47

(349)

456813'45,

(*ffj

im)47

(47)

32

(32)

i83

•9

FAOUL-Ж.

ftë5нС

|o

•sí4"

(687)

'54243

66,53

626//][ 233C

í(1375)

2l

> 10840

69

j

[ 54C)

ï бос(214)

153214/

(Зб7)

146229/

5833

(4бб)

19758

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faculaunaccompanied by a Spot. The positions of Faculœ relative to the Spots with which they are associated are indicated by the letters », *, p, f, a, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculœ are expressed in millionth» of the Sun's visible Hemisphere.

Feb. 15 and 16. Spots and Faculœ ill-defined. Feb. 19. Limb very faint. Faculœ ill-defined.Group 1840, Feb. 11-17. A very small spot on Feb. n. On Feb. 12 the group appears as a straggling stream of very small spotB. The preceding spot of the group on

Feb. 13 is a regular spot, which has diminished in size by Feb. 14. The rest of the group undergoes continual changes, but remains on the whole an irregularstraggling stream of spots.

Group 1841, Feb. 11-13. Two very small faint spots on Feb. n and 12. A third is seen close to the first two on Feb. 12. Only one spot remains on Feb. 13.Group 1842, Feb. 17-23. A small spot.Group 1843, Feb. 20-2$. A number of small spots first seen near the centre of the Sun's disk. When first seen on Feb. 20, most of the spots are arranged in a circle,

enclosing a considerable area. By Feb. 21 many of the spots have disappeared, and the group f orme a straight stream. The group diminishes in size on succeedingdays and no trace of it is seen on Feb. 24. On Feb. 25 a very small spot is seen very near the place of the group.

ON PHOTOGRAPHS TAKEN AT тнв ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1686. 41

Measures of Positions and Areas of Spots and Faculté upon the Sun's Disk — t:ontiniied.

GreenwichCivilTime.

1886.50d 'l62

I.

Feb. 20

51-112

I.

Feb. 2i

52-525

Feb. 22

53-157

I.

Feb. 23

54-429Feb. 24

55-200

I.

Feb. 25

56-428

я

H, SP

HP, M

H, SP

H, SP

M, SP

M, SP

H, KP

11'S§s*о

*l1

1 84з184318431842

18431843184318431842

'843184318431842

18431842

184318441844

1845-

я-S.g| .

^1Л ш

Dis

tanc

e:of

Su

n1

0-274О'ЗО!

0-2930-665

0-9350-9260-922O-I23

o - i i 80-1420-1520-5010-932

0-9200-376

0-3490-3000-250

0-9320-9360-926

0-8540-5060-186

0-963

0-8340-8760-9080-971

0-9340-9460-251

U*Ö

J

«б

T?n

f

î*о

i i8 '7119-61144108-2

262-2247*5270-719171767170-0161-61 13-2

99'3

299-5

2 5 I - 3248-0

244-4138-7

270-2285-0300-8291-3256-5172-1

98-5

260-0

95'S97-691-2

257-5279-7341-6

HisuooiiAPHic

í.о

251-4250-0249-82244

323'1

322-7

320-2254'6252-7251-6250-3

1837

295-3256-0254-0250-7224-7

295-02934287-5281-3256-6224-9

'344

256-4'37-8I33-6123-2

253-0252-71877

Lat

itud

e.

о

-44-154-13-8-'74

- 9-8-23'5— 2-1

— 14*0

-13-8

-'S''

-'5'3-17-6— I 1-2

+ 23-6

-13-6-14-2

-4-3-17-8

— 2'5

+ 1 1 - 3+ 25-0+ 14-0-13-0-17-8

— i o- 1

-12-3- 8-3- 9'9- 2-9

-14-2+ 6-7+ 6-6

SPOTS.

IIa'SSAЧCG

ill•5

о6о3

(IO)

52

О

S2

(Ч)

0

ооо

(о)

0

о(о)

(о)

ооо

(о)

I

IlНтз

о-Í-£•£

*ï*a g rtV°

15387

30(130)

17Ч

2

21

7

(6i)

10

1 125

8(54)

98

07)

(o)

31817

(38)

8

FACULTE.

|0

'•я"Кlá

J1

(255)8o9948

40(267)

127

(127)

5°88

1 6o31

(329)

1 6oОбо)

7 S"1 г Я с г> 2051,

3°3(663)

256

44

GreenwichCivüTime.

1886.56ll'428

Feb. 26

57472

Feb. 27

58-196

M.

Feb. 28

59-207

M.

fк

H, EP

EP, H

KP, H

SP,H

1h

!те§ci

li1 844«18441844

1844«1844

184618440184418441 847«184718471847^1848

18461846184618461 844«1844184418441844184418441847«1847184718470

1<jj

.9

£ .•3-f

1.

Dis

tanc

e :

of S

on'

0-6910-7260-7610-8620-9010-968

0*4840-504

0-8800-2790-323

0-3430-3690-9610-9700-9750-9820-9910-961

0-9600-8630-4980-4670-4510-4540-093O-IO50-IÓ20-1820-175O-2O50*2260-8780-9140-9170-922

ъsj«H

0>

t

Pos

itio

nA

xis.

о

95796497-0gi-6

102-2

747

96-4

954

252-3242-8

96-9

93794'3

104-4105-9104-7106-7

94-3677

2 5 1 - 5310-8255-5254-0252-7249-8I I 2 - I

I05-5

IOI-0

113-7102-5II 1-3ï ю-б

104-5103-5104-61 06-6

HELIOQBAPHIC

Lon

gitu

di

о

139-1

13б'3

1234i i 8 - iI I О1 1

140-3139-0

222-1

1747

I4PO

I39-8

138-2

84-9

827

81-5

79-377-390-0

221-8

'95'3176-3174-1I73-0172-8141-7140-9

I37-5137-0136-8

'35'5134-3

84-779-9

79-478-7

•S.1

о

— 9'2

- 9-6— lO'O

- 5-1-14-1+ 12-8

- 94- 8-9

— 19-0-Ч'З

— 8-1- 8-3-15-8-17-1-15-9-17-7

+ 19-0

-19-8+ 29-6-134-13-8-14-2-I5-5

- 8-8- 8-9-11-3

-114-II-6-16-2-'5-2-l6-2

-18-1

SPOTS.

II•oM!§t•g ^

7о0

(8)

0

0

(о)

о4оо

'Sоооо

09)

4ïï4оl0

оIоо

516о

'S

IlHT)

Siet

Й1

4647

(65)

22

3

US)

1732

84

121

59i i9280

(424)

8738562

5742

4545273

297

FACULTE.

íоIQ

ïî)> 102C

j210

34178

(ИЗО

(o)

122

I95C303«112

(732)

l82

21

)2б8<:

The Groups of Spot» are numbered in tho order of thoir appearance. When thoro i» no number in the third column it is to bo understood that there ig в Facralaunaccompanied by a Spot. The potations of Faoulnj relative to the SpotH with which they are associated ore indicated by tho letters n, *,p,f, c, denotingrespectively north, south, preceding, following, concontrio.

The Areas of Spots and Faculto are exprcenud in millionths of tho Sun's visible Hemisphere.

Fob. ii. Photograph faint. Limb ill-dollnod. • Fob. M. Faoulœ very faint.Fob. is. Photograph faint. Fob. 17. Photograph very faint. Spots ill-doflned.Group 1844, Fob. xs-Maruh 4. Two small spots on Fob. 15. On Fob. 16 and tho succeeding day« tho group consists of an irregularly shaped spot, я, followed by a short stream of very small

spots. All but о have disappeared by March ». Group 184$, Fob. 16. A small spot.Group 1846, Feb. 18-Maroh j. A small spot on Fob. 18. A short stream of very small spots on March ï, of which only one member remains by March ï.Group 1847, lob. i8-Maroh n. Two regular spot«, « and ft, on Feb. 18, with two smaller spots between them. Both « and b have increased very greatly in sire by March ï and at the same

time have entirely changed in appoumnuc. Two nrrmllcr spot» lio to the north of n and fc, but between thorn In longitude. By March ï the group ha* undergone another change,a has partly broken up, tho principal portion, «, being a largo regular spot, Ь has undergone little change, but between с and Ъ thoro IB a broad complicated stream of spots forming awide curve convex to the equator. Л has divided into two spots, ri and c, by March 4, The group gradually diminishes In sir.e on the succeeding days, the spots intermediate between<з and e dying out. d has disappeared by March 7, and by March 8 only a and e romain, e varies somewhat in its shape on tho following side as a number or the small spots followingit appear to coalesce moro or loss perfectly with It on March s and в.

Group 1848, Fob. iS-Maruh 7. A regular spot on Fab. 18 and March t. A bridge divides It into two nearly equal portions on March ï, and tho separation between the two parts tends toincrease upon tho succeeding days. Tho spot is always measured as one. It diminishes rapidly after March ï.

GBBBNWIOH OBSERVATIONS, 1Н8П. fi F

42 MEASURES OF POSITIONS AND AREAS OF SPOTS AND FACULTE UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Faculea upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.59d-207

M.Mar. ï

60-454

Mar. 2

61-435

v1яSP, H

SP,EP

H,EP

1S11§CU

ío*tfc

1848

18461 844 a18491849«18470184718471847184718471847184.718471847 118471848

18461 844 cr1850«1850!!»1849184918491849«1847 c184718471847184718471 847 118481851«

is.aц »&§«и »g "glï.20Я

0-9330-899

0-7420-2090-1460-1660-6790-7070-7090-7240-7300741

0-7630-7670-7700-794

0-7930-7930-937

0-948

0-956

0-8760-423

0-3830-3640-193

0-1720-144

0-I250-504

0-552

0-5880-6o60-6240-639

0-6550-6400-975

§A

1•R

93

Í§ »!•<

0

93-062-9

257-9259-143-857-1

107-4105-6103-1103-2106-4105-2103-6106-5104-8108-5105-091-988-578-798-8

2587263-2320-8324-8306-8311-73114

112-4109-1108-0105-41 08 -6105-91 10-890-691-8

НЕ1ЛООПАРН1С

TJa

%

о

77-688-1

178-5142-31 24- 5122-3

87-885-385-083783482-480-380-179'7777

-77-67776 I 'О6o-656-6

179-0142-3131-4129-5126-1124-5123-4122-3

88-184-481-780- 179-177777-077'339'9

V

0

1

о

- 54+ 20-6

-i3'9- 94

— 2-1-I7-2-l6-2

-44— 14-6— 16-9-l6-2

-I5-0

-I7-3— 16-0-I9-I

-16-3- 6-0— I '2

+ 8-2— IO-6

-134- 9-5+ IO-2

+ IO-2

- 0-7

- 0-7

- 1-9

-I7-5

-16-5-16-5-15-1-17-3-15-7— 19-0- 6-0- 34'

SPOTS.

II<j-e

8 sW "~ 'sl«Hœ •

«îl•<

27( I I I )

О

I

80

21 '

10

оо70

4iо

20

2

17

(97)

0

оо2

4оо4

335300

7942О

е ё«нчн

H*

olB.«

«нЮ .

í||•3

120

(Ю53)

12

4

l i235126

5174524

IOI

89l i

271

3786

( IIOI)

17659

52

97

312761393°4484

6i«7472

127

FACUUE.

|0 .

•8?IPё-2

ITS

si•3

550*/165(1186)

39c

•ч

> Ó29C

599«21268

1920739)

'95/

I9OC259«

GreenwichCivilTime.

1886.

61435

Mar. з

62-473

Mar. 4

63-217

M.

к

iЯ

НЕ,Р

H, SP

Н,ЕР

1И

5-ва

g0

liИ

i852a

1 844«1850«18506184918491849«i847c18471847184718471847^1847018481851«1852«1853«

1850121850^1 8496i849c1849«1847«1847184718471847184718471847^1847618481851«1851

|a.3

è03

*P Ю

8 gSw.1*8Q

0-9880-8900-909

0-9550-5700-5310-506

0-3950-3670-3290-320

0-3330-3650-41 10-4300-4640-4870-4490-9000-9300-9830-968

0-6810-6410-5830-5520-4990-1970-1740-2390-1920-2250-2630-3420-3130-3510-2760-8040-819

iEC

в•И

,s1Д

IIPM

и

97-884-з98-5

257-2263-830143037286-4285-3282-6124-5I I 3 - I1 18-3i i6-iI 1 0-0

112-4»17-3

88-589-996-6937

югб

292-6294-1278-6280-9276-4150-7136-4148-2131-7140-212941324

126-485-588-088-6

НЕЫООПЛРНЮ

OJ

'S1

o

35455-05 I - 3

1774142-7130-9128-8125-8124-2122-3

87-685-284-181-079-077-176-476-939'534723-827-2

I33-2129-9128-8126-4123-3

87-986-686-185-285-181-578-278-076-477740-438-8

<£J

j

о

— 8-8+ 1-7-10-7

-44- 9-6•f 94+ 9"6- 0-4- 1-3- 2-8-17-4-44-16-8-17-2-15-1-16-8-19-4- 5'9— 3'1

— 8-8— 5-0-13-0

+ 9-6+ 94— 1-2— o-i— 3'1

-17-1-4-3— 18-9-44-17-1-16-6-20-3-17-0— 18-9- 5-8- 27— 3-0

SPOTS.

II•«l-a

Si5i.§ sa

•3

24

(125)

ооо30

348

0

5оо0

I I3

1832

32

(155)

40

817u46

о0

0

4448-

13421

О

IlИ Ч1-3 gOi

Si•gM ,

•3

194

(1337)

91 1

5852793

2698

973638

112

4344

108220

196

(1501)

10

746

4791

2822

2I

5866

3°80

82

37116

ю-

FACTOLjE.

P.

1 .

. MII

i1•3

850228486

(443)

99

55«79«

208C121

(562)

|

> I / I C

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spote with which they are associated are indicated by the letters n, e, p,ft o, denotingrespectively north, south, preceding, following, concentric. •

The Areas of Spots and Faculse are expressed in millionths of the Sun's visible Hemisphere.

Maroh 4. Photograph very faint. Spots and Faculse ill-defined.Group 1849, March 2-8. Two small spots on March 2. Of these the following spot, a, increases in size on the succeeding days, but remains fairly stable in position and

appearance. It undergoes a great increase in size between March 7 and 8. The preceding portion of the group has become a short stream of spate by March 3.These spote have coalesced to form two spote by March 4, and have again divided and coalesced in a different manner, principally to form two spots, í and o, byMarch 5. a has divided into two spots by March 7, but these have combined again by March 8.

Group 1850, March 3-6. Two very small faint spots, a and b. b has disappeared by March 6.Group 1851, Maroh 3-14. A regular spot, a ; one or two small spote are seen near it on Maroh 5, 6, and 8.Group 1852, March 3-15. A large regular spot, a. The group has become suddenly larger by Maroh 1 1, principally by the appearance of a stream of epote immediately

to the south of a. These later formed spots diminish in number and area on the succeeding days.Group 1853, March 4-16 A very large regular spot, a, followed by ft stream of email epote. The email epote undergo very frequent changée in area, appearance, end

arrangement ; a has thrown off a portion by March 9, but increases in size during the succeeding days. The small spots have all disappeared by March 14.

ON PHOTOGRAPHS TAKEN AT тнк ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAUKITIUS, IN тнк YEAR 188G. 43

Measures of Positions and Areas of Spots and Faculœ upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.6з"-217

M.

Mar. 5

64-226

M.

Mar. 6

65-507

1яH, KP

H, EP

H,SP

114

11£

1

l!K

1852«1853«1853

1850«1849/,)184918496-1849«18476-1847184718471847Î8471847«18481 8 5 1 a185118511 8 5 2 a

'8531853«.18531853

184961849 с1849 G1 849 a1847 с1 847

1847018481851«1852«1853

i.s•S .

8 1Iм

! 'Sд

0-8470-9330-9660-964

0-8350-7320-8400-778о-7зб0-7300-6820-2090-1590-1890-156o-i8i0-2290-21 I

0-0500-6430-6590-6840-7020-8040-8320-8810-9140-837

0-9620-9410-9330-8980-8790-8650-4180-3850-2900-2550-3920-4660-602

ita§

I

IICM

О

95492-2

93-672'3

261-9266-0285-6

273-7276-2272-8216-0213-4198-1168-4167-5168-9160-9

62-684-885-387-394-288-390-791-990-9

104-0

261-6283-3272-6274-0272-8270-9245-4247-3224-0274-5

79-894-886-2

HELIOQBAPHIO

1

^о

35424-618-422-1

137-5

I27-8

I35.-3I 3 I - I127-6

I2Ô-8

123487-8

85784-078-678-277-876-378-040-839-637'S35-727-124-11 8-614-423-3

1384131-7132-1127-0124-8123-4

86-985-175-878-341-035726-8

13о

- 8-4- 4'7- 54+ H'9

— 10-7- 7'9+ 9-0- 0-9— 2"2

- 0-5

- 34— 16-9— 14-8-17-5— 16-0-17-4— 2O-I

-187

- S-9— 2-2

- 24- 3-5- 8--I- 2-Q

_ 3.7-15-6

— 1 0-0

+ 9'9- 0-3

+ 0-4— ГО

- 3'3-IÓ-6

-I5-3— ig-O

- 5-8- 27- 8-6- 3'5

SPOTS.

II<)-a

Й1BtL

•*!

29620

(245)

ï35о

28

12

30о0ооо

173

240о

35о

IO1

I Iо

(297)

21

. 455

28

230

130

to29о

II

310-2-

•H00

£ lo•4

' 2 1 4561140 '

(•**зй

12

169

2

309122

3'992

I I

3118n

u2

22O

585

13931

(2^22)

I 80

244

64

130

270

8ï об

7117I92

5

FACULTE.

A.

1

1|

§1•4

836-

[934C

85X'273)

> 17138

• 6440

239(1092)

162105

)> 1970

)

GreenwichCivilTime.

1886.65"-S07

Mar. 7

66-430

Mar. 8

67-448

Mar. 9

68-419

сe

я

H, SP

EP, SP

H, SP

H,EP

1

Д•3ort

|&

£

1853«185318531853

1849^184901 849 a184701 847 e185101185118511852«1853«1853'853185318531853'853

184701847«.1851«1852«1853«1853

1853

1847 c1 847 e1851171852«

iя

0 «

flli

«H J«

p

0-6430-6930-6950-7280-768

0-9210-9890-9680-9550-5870-452

0-2150-2420-2670-4680-5130-5130-5320-5540-5700-5720-961

0-7450-623O-IO20-040

0-2550-2990-2960-372

0-893

0-914

0-7730-870

0-7760-299

OM87

'i£§

U

3

fl

0

89488-991-892-090-6

20Г2

270-7271-6

268-6

240-766-774-274-696-487-885-891-689-892489-392-078-3

254-1248-3322-6119-9

82-579'389-690-375'5

297-2266-9254-9250-9284-5263-6

НКЫОСШЛГШС

f

à

0

23-619-8I9-4167

'34

1 19-1132-6126-5124-2

86-776-04i'339'537'935-923-520-720-419-217-616-616-4

339'2

86-175-541-435-923-320-92O-6

16-0336-9

85-876-086-276-042*036-0

a

í3о

— 5'i

- f 5- 6-5- 6-4- S1'

-11-3- 0-4

- 3-5-i 6-8-I9-3- 2-8- 37- З'З- 8-6- 54- 4-1

- 74- 5'5- 74+ 9ч

-i 6-6— 19-0— 2-6

- 84

- 5'1

- 37- 6-8- 6-8+ 9'5

+ 21-3- 7'o-16-6-19-3

- 8-3

SPOTS.

II

?•ё*-£

•5 "

IO4006о

(290)

13ЗбзбЗ2

I I

H0

0

27105

2

ОО

оо5

(•80

343

ю2367

ооо

037)

n69

26

IlIItt

ïii•5

573869

73J7

(2081)

15042634

85135

5

1966554022

94

Ч54

WSg

26850

u6186577

724472

(1385)

23343

118188

FACULTE.

o,

О

11a•Ч

31б/tówí-1 VtÃ/ ov

1 08

5290

89(726)

154(«54)

8o234

f 3290

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there ie a Faoulaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated are indicated by the letters и, ï, p, f, c, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faoulro are expressed in millionths of the Sun's visible Hémisphère.

March 9. Faoulœ very faint.

6 F2

44 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULTE UPON THE SUN'S DISK


GreenwichCivilTime.

1886.68d'4i9

Mar. lo

69-465

Mar. 1 1

70-207

I.

Mar. 12

isя

Н,ЕР

H,SP

Н,ЕР

•8»êÃvifC!

ï*fc

1853«

1853

1853

1853

1853

1853

1853

I847C184761851«185218521852«185218531853«18531853i853185318531853

1851«18521852«185218531853«185318531853

is.a

ô*

l?si

S °

0-0480-0970-0900-0910-1560-1540-1770-1850-797

0-8970-9540-8960-5160-4480-4240-415o;399

O-205

0-186O'l6l

0-1530-094

0-0740-054

0-9690-9560-8520-6580-6010-5640-5470-4830-3710-2800-2680-191

'a

ã•Я

.3

I

l-íS")b

o

45-646-966-089-376-286-795-880-471-1

264-6254-5251-2276-9261-6261-1264-9260-1274-5278-2289-8262-8280-0285-1295-33I5-6

253-9263-5273-7274-6264-0265-6262-0279-2274-1267-7276-4256-2

HELIOGRAPHIC

-

rë0

IЛ

о

23-2

21-2

2О'5

20-0

16-51б-з15-047

3354

75-685-075-742-138-036-536*0

34'927-223-121-42О-62О- 1

l6-6

I5-2

I3-6

78-4

75-0

59-542-4

38-6

36-0

34-8

29-923-2

17-816-912-3

1

"J

о

- 5'3- 34— 5'i— 7-1— 5 -о- 6-6- 8-1- 5'3+ 10-3

- 8-1— 16'9— 2O-O

— 2'7

— 10-2

— Ю'З

- 8-6— 10-6

- 5-8- 54- 3'5- 8-3- 5-6- 57- 54- 5-0

-17-4- 8-3- 0-7- 2-5— 9'3- 8-5— 10-4— 2'O

— 5"2- 7'5

— 5"2- 9-7

SPOTS.

«8-8

os 3g A

ЧЮ"o --í-

-ч"

88оооооо0

(14°)

8о

142

О

153о

78о0оооо

(120)

12

15294о

97оо2

(159)

II

*!O-i

Чlit•«3

544323717

3IO

6i i

(1242)

186249i27

8206

76-4

73-1469

IO

8(1323)

9347

171899

5943

2522

(IOS3)

FACUL-Ж.

ft

J

ti?vQ

•12-3-«4

97(74o)

308)f 455e

(763)

473324

(928)

GreenwichCivilTime.

1886.

7Id-569

Mar. 1 3

72-219

I.

Mar. 1 4

73-229

M.

Mar. 15

74-327

M.

Mar. 1 6

75440

Mar. 17

ée

я

EP,8P

EP, H

SP, H

EP, M

H, EP

1Ьч

f•oi

tO

fc

1851018521852«18521853«185318531853

1851«18521852«18521853«

185218521218530

1853«18541854185418541854

1854«18541854&

i.g2a j

*3

»H to

.ibQ

0-9130-8590-8200-7860-7680-6350-6320-6o80-5860-881

0-9260-8980-8670-8510-7410-879

0-9070-9750-9600-8800-9270-926

0-9370-9700-4310-4230-4150-372

0-3340-860

0-9780-6670-6240-613

i5is

•fij*I§ «14&

0

264-3271-8263-5264-8263-1270-72744265-5270-1

79-7

270-5262-8264-2262-5269-8

70-6

286-5261-1262-9268-0

77'2103-0

254*5267-4261-9259-8262-0258-8262-4104-1

263-8264-4263-8261-8

HELIOGBAPHIC

!*о

50-142739-235;823-122"6

z i-319-6

283-4

42-839-535-633-9

276-9

24-139-736-023-5

2557253-I

17-8234

332-8

332-3331-8329-0326-8

247-5

in334-63314

Î3о

— 8-2— 2-2

- 9'5- 8-6- 9;9

- 2-8- 8-5- 5-8+ 5'5

- 2-3— 9-6- 8-6— IO-I

- 5-0

+ 11-7— 10-3- 8-8— 5-1+ 9'°-147

-17-0- 4'3- 9'9-10-7- 9-8-10-7

-157

- 7/5

- 9'5— IO-6

SPOTS.

II2!Ij111«4

53

280

92о0

о

(128)

37

380

49

(197)

о21

log

(«30)

ИЗ30оо0

(11б)

9о2

(И)

u ы•s -aSI0-2-w

-ïî<

43I I

18083

5853110

3

(946)

4415

18148

592

(880)

12170632

(814)

603

9ïï5ï

(620)

524

12

(68)

PAOULA

ft

es.a -R<3 cego

JSë-8:i« i•5

135159e

)[ 324e

)

44(662)

6580)V io8c

)2846*

97(II47)

103

55IC7360151202

(1743)

351667/

47(1065)

421

(421)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculœ relative to the Spots with which they are associated are indicated by the letters n, e, p, f, a, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spote and Faculte are expressed in millionths of the Sun's visible Hemisphere.

Group 1854, March 16-20. A stream of very small spots on March 16. The members of the group have coalesced by March 17 to form three spots, of which thefirst and last, a and b, are the largest. Only a, and Ъ remain by March 18. a has broken up into several portions by March 20, but is still measured as one spot.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, ш THE YEAR 1886. 45


GroenwiohCivilTime.

1886.76d'202

M.

Mar. 1 8

77-465

Mar. 19

78-159

I.

Mar. 20

79-196

M.

.Ii

H,EP

H,EP

H

EP, SP

1

IЛ13ifÜ

^18540185461855185518560

1854018546185701857618551856«

185401854618570185761858185818581858185518560185618561856

1858185818581858185818551855

1.9JSgÖjg

JHjjl'a

0-7940-7480-9380-9500-9930-9790-9590-894

0-9350-9070-7290-69607930-921

0-9790-9640-8400-8050-2640-2550-2890-2970-7310-8550-8810-8940-9160-955

0-1710-1600-1470-1760-1590-5060-551

iи

-aI

.8.3

1

о

264-02Ó2'3

IOI-8

98-984-1

i73"ii6i-8Ю5'6

263-7262-4

2594258-3100-3

8i-6

262-4262-2259-8258-6

50-052*955-854-099'679-680-0Sri80-4

102-5

3347342-5353-23594

4-0103-1102-6

НКЫООПЛРНЮ

u!

3о

3354331*22I2-O

210-0

200-2

ZZ9'8

222-9

218-5

3357331-6313-0310-3213*2200-1

335-6332-0

344310-8245*2245-1243-0242-9209*21994196-4194-6191-8183-1

247-3245-8244-1243-2242-5212-9209-8

•ë|10

- 9-0— 10-4-13-5-10-7+ 5-0-81-5-69-7-17-1

- 8-4- 9'9-12-6

-13-2-12-4

+ 4*9

- 8-8- 94-12-4-134+ 2-9+ 2-0

+ 2-5+ з-з-11-8+ 5-1+ 54+ 4'7+ 5'9-14-0

+ 2-0

+ 1-9+ 1-5+ 3-2+• 2-2

-12-6

-12-7

SPOTS.

Ilaiш .а3s.•8ÏÇJ ia

n4оо

35

(50)

8оо0

о39

(47)

21

О

О

0

о2

0

0

2

зб40

6

ffî67оï

IOI0

IIpio S,

Í!.

-1?Jla

9448

54

268

(419)

4515Ч22

9

275(38o)

13140

752

29

6Чi i

276i61522

(574)

«S17

i12

SIIO

6

FACULTE.

P.

ü>jjÔ

8á•&IJ~

7icбос

)f Ч7С

4610799

(530)

2686'

и 26-

I 3 I C477/

(958)

3 4е

59е

)> 5960

)Ю9

(1078)

GreenwichCivilTimo.

1886.79rt-i96

M.

Mar. 2i

80-205

M.

Mar. 22

81-141

I.

Mar. 23

82-466

Mar. 24

E*

1JEP,SP

H,SP

M,SP

H,SP

1

i1Яtf

O

•st1*1856018561856

185801858185818581858185518560185661856

1858018581858185818560185661856185901859

185801856018566185901859185918596

i.aË

»s|«

Úl'a

0-7100-7350-7950-907

0-9860-3520-2930-2910-2690-2650-3370-5310-5630-6320-8380-9-4

0-5380-5240-4620-4360-3640-3950-4620-9850-9900-8930-937

0-8850-7630-2080-2280-8900-8980-9150-9290-898

i&

Ja

•â

1-3Г

Q

75-5

75'577-0

1 04- 5

258-1294-2301-4306-1304-2306-4107768-867-171-6

105-872-9

284-1279-6287-0290-3

56-255463-289-093*670-098-8

288-8277-3

1-87-1

86-891*788-489-674-6

НЕЫООВАРШС

1

Áо

199-6197-6192*1177-3

3 I I - 3248-5

2434242*6242-12107

2OO-I

198'5192-9172-6

155*6

24872484243*5241-5199-8198-4193-0137*61354157-6147*2

259-1249*о199*6198-4137*5136-0134*1131*9138-5

1

eï

1

о

+ S'2

+ 5-8+ 6-0

— i6-o

-12-9+ 17+ 2-1

+ 3-1+ 1-9+ 2-3-12-3+ 5*i+ 6-7+ 6-0-17-0+ 4*9

+ 17— го+ 1-6+ 2-4+ 5*1+ 6-5+ 57— о'з- 4-6+ 44-ю-?

+ 13-1+ n+ 5*«+ 6-3- о-з- 4*6- 1*3— 2*2

+ ю-б

SPOTS.

•8 «8

Рн 3М~

в*чн00

«1frISP

3393

(70)

ч0

оï9о

4115

ï

(8i)

21

О

0

о64

22

2

0

о

(log)

639u22

0

О

10

(94)

IIhi 9öl

et-*3|ia

254Ч12

(402)

676ï9

Ч2

236IOI

17

(454)

862

Ч

7215

8915

16637

(632)

42242

83171

3281

221

(872)

FACDL^ä.

Pi

es•S?и||í"

j\ SoieJ

IOO

(401)

136

бз133

(332)

"1J

160131

(483)

120

7 6с

1 7 СИГf 75ОС

i i8(1070)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faaulaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated, are indicated by the letters я, t, p, f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculto are oxpresxod in millionths of the Sun's visible Hemisphere.

March 23. Limb of Sun faint. Faoultu ill-defined.Group 1855, March 18-33. Two very email faint spots on March 18. Only one spot is seen on March 19, ao, and зз, but on March 21 the group consists of six very

small spots arranged in two clusters. The spots seen on March 19 and 20 do not seem to be the same.Group 1856, March 18-30. A large regular spot, a, followed on March 20 and the succeeding days by a short stream of small spote. A second regular spot, b, has

appeared close to a by March 23 ; Ъ has divided into two portions by March 26, but is still measured as one spot. It has entirely broken up by March 38, and onlya remains by March 29 ; a diminishes in size after March 20, but slightly recovers iteelf on March 24, diminishing again on succeeding days.

Group 1857, March 19-20. Two small spots, a and b.Group 1858, March 20-25. An irregular cluster of very small spots on March to. The group develops on the succeeding days, and has become a straight stream of spots

by March 22, the first spot, a, being the largest ; only a remains by March 34.Group 1859, March 23-April 4. Two large regular spots, a and i, with several small spots between them. Only a and b are seen after March 30.

46 MKASUBES OF POSITIONS AND ABBAS OF SPOTS AND FACUL^S UPON THE SUN'S DISK


GreenwichCivilTime.

1886.83d'S94

Mar. 25

84-426

Mar. 26»

85-116

I.-

Mar. 27

Éa»

H,EP

H,BP

H, H

t-í

J"gÍAi

O

'S g.o»Й

1858«1856«185661859«18591859185918596

1856»1856618561859«18591859185918596186018601860

1856«185661859«18591859185961860186018601860

$.3

JIsId§1S02

1*8Q

0-9770-9000-3250-3260-74007520-7690-7820-8010-914

0-9470-4770-4770-446O'6O2

0-6160-6340-6630-6760-8680-8750-8820-903

0-986O'OOZ

0-6040-4660-5070-5040-5470-7290-7680-8030-8290-9440-9650-984

iI"HS

3

.s. s

f£

o

2854273-5307-9313-6

84-189-785-486-686-8

105-1

273-6293-5297-9296*68r889-183-983-285-2

104-0104-71 06- 1

73-3

272-82877291-0

78-372-981-682-9

io6'i105-5105-8io6'i

84-287-9

109-2

HELIOOKAPHIC

4• t .о3

о

2ÓO'5248-92ОО-О

198-9138-0136-5135-3I34'1

132-3118-5

244-9200-1

I99-2

I97-7137-8

136-2

I35-3I33-2I32-O

II3'6

II2'7

I I t ' 9

I 1.2-3

245-0

2OO-I

199-6

I38-I

136-2-

I35>3

I32-3I lS '5

114-9

M I ' S108-9

95-290-783-9

oîT31!о

+ 134+ o-i+ 4-9+ 6-3- 0-3- 4-3- 0-9- 1-6- 1-6-16*6

+ 1*2

+ 4-9+ 6-8+ 5-3- o'5-- 4'7- 1-4- 0-6- 1-7-15-4— 16-1— 17-3+ 11-9

+ 1-6+ 5'1+ 7-0- 0-64* 27'- 1-6-V8-16-3-l6-2

-167

-I7-I

+ 3-2

+ 0-3

— 20-O

SPOTS.

II<j-o«J,jsj-g

m

•gg i n

•<

• 3276

21

О

50

38

(l 00)

29u0

17_ о

оо

24

0

оо

(81)

3810

24••> о

2

38о964

ОзО

IIHTJ

â!te 2

-1*és«

3°212

82

172

IO

1927

213

(765)

204874

1746

12

6283

H

53

(798)

20557

169ii

5235

15174716

(777)

FACULTE.

rCS

•s?lá-ié-a-

120

250/

• 6i9c

185(1174)

'59

I54C

81(394)

156

]> 215«

9847

316(832)

l GreenwichCivilTime.

1886.86<--l88

M.

Mar. 28

87-421

Mar. 29

88-232

I.

Mar. 30

é2

1

H,SP

8P,BP

H, H

1

Jt!avi

ío•sidlfr

18561856«18561859»1859185961860i86oa1860186061860

1856«1859«185961860«1860186061861

1856«1859«1859185961860«186018606186118611862

!.gJа лôj

1«Ч* „«и

|J

.ï 'so

0-9590-9140-8710-6860-7780-7720-7540-2440-279O'32Ö

0-548

0-582

0-605

0-634

0-680

0-922

0-894

0-938

0-915

'O-I26

0-093

0-327

0-370

0-420

0-972

0-957

0-976

0-274

0-225

0-1860-1930-2430-2880-9160-966.0-923

1

•H

•ä

§.a

rO

275-1278-2258-5281-4285-1282-3284-265-1

72-775-6

109-5109-5108-9108-9109-061-8

IOI -8109-4

279-23264

17-0I22 - I

118-1117-0100-587-4

277-2290-7291-2296-3153-0139-4131-999-6

101-496-7

HKLIOGEAPHIO

oî

!яо

2237

211 '9

i93'i199-9199-9198-0138-2135-5132-6n'8'5116-1114-4I 12-2

1о8-6

89-3

87-0

80-5

I99-6

138-6

I33-0II7-9

114-8

I I I 7

57-361-9

2OO-2

1387

136-0

I33-5118-7

114-4

i iro57-048-056-1

QJПЭ

S••§J

0

+ 3'°+ 47— 'З'З+ 2'9

+ 74

+ 6-2

— о- 5- 1-6— 17-i6-i-16-6-16-6-17-0-17-7+ 22-8

— 13-5— 2О'4

+ 5-6- о-б

-16-3-16-2-17-1-п-в+ 0-5

+ 5'5- 0-8— 1-7- 17-16-3-17-1-174-11-4-127- 87

SPOTS.

Il<jro

Й SPQ >"'

"Ч frJ°á

3з°о

23О

i83

16о

3i2

(126)

27

32

О

I I0

(101)

28

2О

О

18386

21

75о

(43)

Il»•eH! goiИ*.

•А

jlp

37I78

6165

2

18116

'З1

4138

H

(872)

1761241 20252

8239

27

(94б)

172153

6114285

12

221

30

1718

(1028)

FACULTE.

л

о•Я -Rláli•о

J-2643

10765

í '5 8сí

73176390

(1038)

5S9C

2320120

(9»)

584«/

]i 8 юс)('394)

The Group« of Spote are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters и, к, 2', f, >', denotingrespectively north, south, preceding, following, concentric.

The Areas of Spote and Facnlœ are expressed in millionths of the Sun's visible Hemisphere.

Group 1860, March 26-April 5. Three small spot« on March 26. The group rapidly increases in size on the succeeding days, and two larite upots, a and b, have formedby March 28. These, but especially a, increase in size on the succeeding days ; Ъ hoe broken up into a great number of small HpotH, which are Htill measured asone, on March 31 and April ï, but has closed up again to form one large spot by April 2. A large portion of Ъ has become partly separated from it by April 4, andhas wholly disappeared by April 5, thus causing an apparent change in the position of the spot.

Group 1861, March 2g-April 9. A small spot on March 29. Other spots appear following it on the succeeding days, and the group consists on April ï and thesucceeding days of a number of epote, mostly small, following one another in a fairly straight stream. The group changes its appearance from day to day.

Group 1862, March зо-April ï. Two very email spots on March 30. One small spot on March 31 and April ï.


Measures of Positions and Areas of Spots and Faculee upon the Sun's Disk — continued.

GreenwichCivilTimo.

1886.89*'4i8

Mar. 31

90-386

Apr. ï

91-432

i1*

H, SP

EP,SP

H,EP

1h

1"a9

tCS

•sio-áf

1859«.18596i86oa18601 86061861186118621863«1864«

1859»18596iSooa1860186061861186118611861186118621863«1864«

1859(118596i86oa1860186061865186518611861186118611863«

is.S

13 j

1I?e gSMIt!

0-5160-4430-2600-2320-2030-7690-8170-7710-9400-9920-983

0-6910-6310-4400-3920-3380-6430-6570-68307250*6500-8450-9400-9530-942

0-8440-8000-6330-5820-5180-2780-2780-3980-4640-4880-5140-693

iM1

•H

•ât

'•§ 'и's<]dn

o

279-3279-0227-0219-6

193-499-299-996-399-093-8

106-3

275-7274-5244-8240-2232-5100-9102-4100-7101-3101-4

96-199-092-972-4

104-7

2734272-3251-6248-7244-8324-1ЗЗб-i104-0102-2

I03-3IO2"5

99-3

HKLIOOUAPHIC

vта

'uо*

о

138-9134-2ii9'8II7-211Г2

57'953'357-737--8

277

138;9

120-0

1 16'4111-9

57-555'754'552-549-054'937-6

2542б'О

244

139-0134-7120'41 16'3111-3

91-288-35875445Z"951-137-8

S!

о

- 0-8

- 1'9-i6-5-167-17-8-11-3-11-9

-107- 4-6-17-2

- 0-8— 2'2

-1б-б

-17-2— 18-0-117-12-9

-II-9-12-4

-127

— 8'8— I ГО

- 4'9+ 14'б— l6'0

- 0-6— 2 'О-1б-б

-17-5-18-3+ 6-7+ 8-3-II-4-11-3— 12-0

-II-9-1I-I

SPOTB.

IIЗъ

.«£%1чч03

•Я <J>

u s oч)

2О

1547-

о1 1о0

ооо

(93)

i87

544

Ч4о4оооо

65

('70

17Ч58о

2О

оо6оооо

IlH -eо!Efc

•9 jj<S «O

•«3

161103289

16182

74

19217

(1039)

16164

3454i

18093

512

24

96

H248

(1202)

94ni521

8o248

55

47478

13

FACULJU.

|1 .Л to1(5«1§5-

•9

} 366/

}f 451C

243(1060)

249»?377C248465

(1339)

GroenwiohCivilTime.

1886.91<Ь432

Apr. 2

92-567

Apr. з

93-102

I.

!*сMaiя

H,EP

ЭР,ЕР

H,EP

1M

Д'S9л

•g 'sci 00

и

186з1 8 640

1859«1859î860«186018606186518651865186118611861186118611861186318630.18631864«18641864

1859«185961860i86on18601860186061865«186518651861186118611863«

1S.Se"g .31

•6.«8 §S«Jts

0-6960-8300-896

0-9520-9240-8020-7640-6980-4870-4680-4420-1620-1870-2080 221

0-242

0-286

0-472

0483

0-506

0-654

0-655

0-670

0-980

0-986

0-967

0-873

0-872

0-837

0-812

07/6

0-587

0-548

0-540

0-I3I

0-179

0-37I

iЭВ

g

«H

v

ï•á -á•g-3A

o

IO2-2

92-D

I IO-2

27I -2

270-0

2S3-9252-2

249-0

296-1

298-9302-3

I24-I

Il6'2

'23-31I3-9I I 2 - 8113-2

I04-7IQI '398-690-696'2

94'3

283-6270-3

269-4258-3

254-8

253-325Г8250-5

291-4

292*1295-6

«75'3140-3

122-6

105-9

HELIOOHAPHIC

vs

•'S,0зо

37'725-6

138-6

I34-II2O-I

I l6 '2I I O' I

92-79ГО

88-858-956-956-554'953-651-2

38-938-036-325-825-7

24-5

136-3139-8

134-8120-9120-7116-6

113-911O-2

93'0

90-3894

59-3

54-850-9384

•83•8bJ

о

-13-1

- 5;з

- 0-8- *4-1б7-17-6-i9-i+ 6-7+ 7'3+ 7-8-п'4— 1ГО

-127-II-3-II-6

-12-5-12-5— 1ГО- 9-8

- 8-8- 7-6

+ 12-0

- 0-8— 2'2

-13'3-1б-з-174-i8'4— 19*0+ 7Éi+ 6-6+ 8-1-11-4— 12-0-1Гб

-II-6

SPOTS.

II«ÍH3

PQ-— •

2t«i«e so

•ч

о40

(156)

IO

12

78

0

21

0

Оо40

го

IO

7ооо

5*о0(196)

H35о

109о0

1750о7876

IIЫпз

£1К

•S g1

S 5Q

•

8256

(Н°7)

i6o53246

230646

58357

54581675

269i l

3(1569)

103238

8538

21

f184

2

Ч60

91

3934

FACULA;.

1• сзл "К

^ ь0«

""•вS-S-

' •*)

310/99

(418)

| 405С

Збос

(7б5)

i46

723С

2вОС

1Ö7C

The Groups of Spots ore numbered in the order of their appearance. When there is no number in tho third column it is to bo understood that there is a Faonlaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated are indicated by the letters «, *, p, /, c, denotingrespectively north, south, preceding, following, concentric.


March 31. Faouleo ill-deflned.Group 1863, March 3i-April 7. A small spot, a, with one or two companions on April ï, 3, and 4. The цтоир has changed its appearance by April 5, when it constate

of several small spots in a short stream. Only one very small spot remains by April 6.Group 1864, March 3i-April 12, A large regular spot, a, with several email companions from April 3 to April 7.Group 1865, April 3-7. Two small spots on April г. Tho group has increased in size by April 4, and then forms a short regular stream of small spots of which a, the

preceding spot, is the largest, a alone remains on April 6.

48 MEASURES OF POSITIONS AND AREAS OP SPOTS AND FACUL.Œ UPON THE SUN'S DISK


jrreenwiohCivilTime.

1886.93d'I02

I.

Apr. 4

94-446

Apr. 5

95419

dsiЯ

H,BP

ЕР,8Р

SP,EP

11«

Í•а9

fê*t6&ъ

18631864«18641864

i86oai86o&18650186518611861186118611861186118611861186118611861186318631864«1864

186501861186118611861186118631864018641864

i£

eg jД аО-Ч

lág-3Iм

J "8Q

0-3810-5570-5570-58607510-9150-986

0-9770-9090-81107660-3320-3110-3140-2930-2900-2760-2310-2300-2330-193O-2OO

O-IO2

O-II2

0-267

0-317

0-918

0-984

0-920

0-5370-512

0-481

0-446

0-441

0-1600-047OMl6

0-113

iSt

1«H

•a10 я

'S1Ôi

o

108-990-497-094-596-9

107-996-6

254-8252-3284-32847253-3252-6248-2257-8251-4246-1245-7238-0232-9240-0229-9150-81374

88-285-197-5

251-8281-4258-4258-1257-2257-7254-0

238-577-869-983-8

HELIOOBAPHIO

f

g>J

о

38-125'825-823710-8

353-0338-9

I2O-6

1077

goro6о'759459'258758-156-854'2534

51750-939"°37'526-4

334'9

94' 5

59757-655'354'737-12б-5

22'9

227

Á

â•i

а

-12-8

- 54— 9'1

- 77- 9'3-i 8-9- 7-6

— IÓ"2

-i 8-6+ 7-8+ 7-1-11-3-11-3-12-7- 9'5-11-3-12-4-11-5-13-1-14-1-117-I3-5-11-3— 10-9- 5'5- 4'3- 9'3

-18-9+ 8-0-ï 1-4

-11-5— 10-9-12-5-107- 5'5- 3'9- 54

SPOTS.

II<jtJ

«•=•Я«

•e"U«1-sso

461

оо

(273)

30оо0

40

ооо52

О

О

2

0

О

0

58о

(101)

ооо3

Hоо

59оо

II»•ë0-5-W

*&•g £•

fi vP<1

12

284

2

2

O-Sej)far!}^43»

22

'46

28

6

420

54942

63

34132

6260

4

(955)

188

ii12870174

26032

FACUL-Ж.

3,

0

•Ч'Йláк S.8 -S

ъл S8-2-<(

1 208i77

(1594)

J 7 4 i c

95C

89(925)

522I37C

GreenwichOivüTime.

1886.95d4I9

Apr. 6

96-286

I.

Apr. 7

97-544

Apr. 8

98-417

Apr. 9

igi»

SP,EP

H, SP

SP,BP

BP,SP

1â|TaЯ

feo'S S.ЛОЗ

fc

1864

1865«186118611861186118611861186118631864»186418661866

18611861186118611864«18661866

186118611861186118640,

iJ»

.gs1«S B

P M*И л

8 "g9«5

1°

0-1450-8210-883

0-9430-970

0-8990-9840-6630-6440-6230-6190-6000-5760-575

0-3450-1630-0890-3910-372

0-9630-9080-8620*8090-80707750-4370-5270-517

0-9120-8940-8860-8790-617

iœ1

•Я

•a1a .

!•§i-3h

o

69-999-0

101-387-4

251-1279-4260-0256-7257-1259-3256-4258-1255-1251-7272-1271-1344-0344-0

274-9260-8259-0260-9259-2268-8309-9311-7

2597258-7257-2259-1268-2

HELIOGBAPHIC

о!тза

'I1Á

0

2ГЗ

333-7326-8

3I8-0

3'3'S

82-О

96-2

59-2

57-656-055-954'352752437-227-122-8

24"!

23-8

76-4

6576 ГО

55-355'1

52-0

27'О

25724'5

55'853452-6S I ' S

4&3и

о

- 3-2

— 1O-9

-IÓ-6

-12-7

+ 14

— 19-6+ 8-1— in-13-1-12-7— 13-0-Ц-8-I3'5-11-9- 5-6- 5'9+ 16-0+ Ч'9

-21-9

— iro-12-4— 10-9— 12-1

- 5-9+ 14-3

-1 1-9-12-7-14-1-12-4- 5-8

SPOTS.

е ё•S «H„J-O

Р5 aP3-2-

нД .д-flÇS Sp

•Ч

О

(76)

о9о2

22

0

34о

6о0

0

о(юо)

0

70

0

58о

(66)

12

О

О

о59

(70

sê•H «H

HPOJ 90-2-д^

^nй"§ frS w fi<

5

(526)

89i

2

26

98

6

47334

256745

(587)

38561526

2682

9(44)

6o79

25267

(368)

FAOUL-яэ.

ía .л g*î«в-iül»â<

4738

1 66119

(1029)

249i88c

(437)

278204

(925)

1/ 6o i c

J(6o i)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to he understood that thoro is a Faoulaunaccompanied by a Spot. The positions of Faculas relative to the Spots with which they are associated are indicated by the letters я, *, ji,f, a, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculte are expressed in millionth« of the Sun's visible Hemisphere.

Group 1866, April 7-8. Two very small spoto on April 7. Three very small spots, two of which are measured together on April 8.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN тнв YEAR 188(i.


GreenwichCivil

Time.

1886.

99rt479

Apr. ID

100-627

Apr. 1 1

101-437Apr. 12

102-456

Apr. 13

103-095I.

Apr. 14

104-557

Apr. 1 5

105-389

ei

Я

BP, SP

HP, SP

M, SP

HP, SP

M, HP

HP, M

11A1íõê0a*к

186401 86718671867

186401867186718671867

18640

1868186818690

is.5

g gтЗ

lásîIм

J 'Sя

0-9220-8470-8640-7920-6850-6970-729

о-доб0-9250-8660-92404830-5340-5140-559

0-979

0-9800-9600-926

0-8920-4180-4460-9280-944

0-9430-922

"g1

1«И

,2

I§ «5

h

О

203-4

252-5292-9267-5117-6118-3120-8

252-1290-1267-3266-5130-8135*2128-4130-0

265-4

258-2266-4248-5

261-198-599-o82-772-2

270-8284-7

НЕ1ЛООПАРНЮ

i'g>s

O

43-133-528-0

294-5293-7291-6

25-624-820-428-0

296-9295'3294-3291-9

28-1

iS'5JO-2

4'5

332-0244-0242-3201-4200-4

328-0322-7

«

1лU

- 8-4-17-9+ 16-5- S'S-22-9-237-26-1

-i 8-7+ 16-1- 5'3- S'5-237-27-5-23-8-26-1

- 57

-12-7- 5'i— 22-0

— IO'4

- 8-5- 8-8+ 47+ I4'9

— ri+ 11-3

SPOTS.

II«1

'gl•g00^«li

•ч

6oooo

(6o)

480o0o

(48)15

(o)

(o)

0o

26(26)

II310-2-

E*00

'S x.

•5

279667

(298)

25335

12

6

(279)

176(176)

(o)

(o)

44

141

(H9)

FACULTE.

1<ä•g "éláII•e§1,•9

639"3386

Ч9С

(1007)

298i об121

275С

(8оо)

2бо/(1б9)

225Ю740

(372)

(о)

38

478«1OQ

(625)

32

38

GreenwichCivil

Time.

1886.

Ю5а>з89

Apr. 1 6

106-102

L

Apr. 17

107-103I.

Apr. 1 8

108-391

Apr. 19

109-578

Apr. 20

110-159

I.

1iя

EP, M

SP, H

SP, H

BP, SP

SP, BP

BP, H

1131f3

*ífc

1870187018681 8690

18701870187018690

18690

1 86901871018720

18690187101871187318720187218740

18690187101872018721872

is.aè

ífl

Jl

8 'gJ«Jhp

0-3290-3130-2340-8390-872

0-9070-4420-4150-4000-7440-929

0-574

0-3240-9480-9850-963

0-9050-1560-8220-8440-9750-8960-9160-9910-898

0-9520-208074110-8290-8510-852

g1

«jsДД

Ï-UCM

o

332-53397105-0

81-469-8

260-4311-7314-9318-9

79-2105-4

747

60-578-89°7

102-3

287-21-9

75-277-878-489-188-6

107-199-9

285-4320-4

72-688-086-988-8

HKUOGBAPHIC

1

1>з0

266-4263-8244-3201-4199-9

313-5267-7265-5263-62OI-2I79-5

20Г2

2ОГ4147-8

I37-9142-9

264-62ОГ9148-8146-1126-4I38-8136-1118-9138-1

264-7202-1148-9138-813б%5136-3

•S1>s

a

+ 11-6

+ II-7— 8-8+ 4-2+ 47

— 10-9+ 124

+ n"94-12-4+ 44-16-3

+ 44

+ 4-3+ 8-9- 1-6— 13-2

-I3'3+ 4-0+ 9"2+ 7'5+ IO-I

- "S- 0-8-17-6— i i - i

+ 13-0+ 4-3+ 9'3— n+ o-i- 1-6

SPOTS.

II

«1pq ^

*И•нШ .

ill•í

2

2О

17

(21)

0о3

27

(30)

i8

(18)

IO6

12

(28)

12

l6

0

O

24O67

(49)

171728

7o

IlSiöS.Et.•и" •

jlS•3

3H4

'34

(ISS)

ï198

121

(49)

136

(136)

112

52I65

(329)

95774

2518265

463

(911)

FACUL-Ж.

O.

SC5

•§">;làilli<

293/57

(420)

105

W68

(352)

(o)

241/3 5 8''43

(712)

> 5 S

1 1«Tï 237(-

43^)1 2036

314069( I I 2 I )

ИЗ108

91 i-jcn i j )

21 ! ' I Ябг

s. *1

The Groups of Spots are numbered in tho order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faaulœ relative to the Spots with whioh they are associated are indicated by the letters n, s, j>, f, <•, denotingreupeotively north, south, preceding, following, concentric.

The Areas of Spots and Faculto are expressed in millionths of the Sun's visible Hemisphere.

April 14. "Photograph faint. Limb of Sun very faint. No spots or Faoulro visible. April 17 and 18. Limb of Run faint.Group 1867, April lo-ii. A short stream of very small spot«. Group 1868, April 15-16. Two very small spot« on April 15 ; one of whioh has disappeared bv April 16.Group 1869, April 15-16. A largo rouular spot, a, which gradually diminishes in uizo from day to day. A small companion Is »eon at some distance on April 14.Group 1870, April 16-17. Two small spot« on April 16. Throo on April 17.Group 1871, April 19-15. A spot, a, with a very small companion on April ю. A change in the shape of tho spot, on April 11, causes an apparent shift in tho latitude.Grout) 1871, April 19-May ï. A largo spot, a, closely followed by a faint spot of irregular outline on April 10. Tho latter has become a closely connected chain of very small spots by April 11.

Those have all disappeared by April 11, but a portion of n has become dotaohod, and forms a small regular spot, Л. Several very small faint spots, some of whioh ore measured with 1),ore soon near on April 16, The group поя greatly diminished by April »7, but has undergone an entire transformation by April 18, on which day It consists of a number of irregularponumbral spots, covering a considérable area. Those have undergone a groat change by April 19, and again by April jo, and the preceding portion of tho group has pawed out ofsight at the limb by May ï.

Group 1875, April 10-14. A small spot on April »o. Two or throe small epote on tho succeeding days. Tho identity of tho individual members of tho group on the different days cannot bosatisfactorily established.

Group 1874, April io-May 3. A largo regular spot, a. Ono or two email spots aro soon In ite neighbourhood on several days. The photograph has been carefully examined, and tho change intho umbra on April 11 appears to DO real.

GIUSKNWICH ODSKIIVATIONS, Ш«, 5 G

60 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULJS UPON тнв SUN'S DISK


GreenwichCivil

Time.

1886.i io d -i59

I.

Apr. 2i

111-430

Apr. 22

II2-45I

Apr. 23

"3499

iя

BP,H

ЗР,ЕР

Н,ЕР

ЙР,ВР

1M

!•в§í 'о

о" ИИ

187318731874«

1869018710187218721872018721873i873187318740i874

1869018751871018720187261873

18731874«1874i8741874

186918690187201872618731873

1S.S.eIs

I?n

0-9340-9550-9670-8110-840

0-4420-5090-6140*6240-6280-6500-8100-8290-8380-8620-9200-949

0-6290-0390-3230-4290-445

0-6540-6520-683073307610-8080-8340-978

0-83407970-196O-2I2

0448

0-458

"S1

•H

f

fifc

О

76-975-0

Ю7Ч78-i99-2

.289-665-083-684-086-883-971-671-173-0

108-5105-2114-3

282-6143-247'984-478-565-669-869-0

ПГ2

II3-8

106-0105-5

10ГО

276-3278-876-5

76-058-4594

HBLIOGBAPHIC

fJ

о

126-71237

Ч17137-3

202-3150-0

140-3

i39'5139-0137-6I2Ó-I

124*4123"!ii8'4IÍO-6

105-9

202- 1163-0150-4139-1138-6127-0126-1124-0118-3-116-3IIO-8108-0

85-9

206-2202-31394138*51277126-9

»;

1*

о

+ 10-3+ 12*7-I8-I+ б-7

-10-4

+ 4'2+ 8-2+ 0-1— 0-1

- 17+ о-з-fi i '9+ 12-7+ 11-4— 18-4-15-9-24-6

+ 4'2- 6-5+ 7'9- 1-9+ 0-8+ и '9+ 9'3+ 10-6-18-7— 2ГО

-157— 15-5-117

+ 2-7+ 4"2— 2-0

- 1-6

+ 9;з

SPOTS.

II"""яа 1

ЧCQ

elo•3

о4

137

(210)

IO

8оо

16о3оо

62

О

(99)

13оо9о0

оо

72ооо

(94)

0

17H40

ï

IIH-gelB*all•3

n31480

(863)62339

I!103

13IO

2327

486

9

(786)

7866

8693

166

465

75

(7i8)

17498092

5

FACUL-Ж.

&

О

II'S

J~•3

)r !34C

1 88с47107

(837)

7Óc

4Ó4CI2O

(66o)

1 1310

281«217

(629)

jj i S a c

GreenwichOivüTime.

1886.II3d-499

Apr. 24

114-582

Apr. 25

115-564

Apr. 26

116-388

Apr. 27

»!fi

iА

SP,BP

Н,ВР

Н,8Р

Н,ВР

1И1

Та3

fО

11•И

l8731874«18741874

18690187201872618741874«1874

18691%187201872187218726187418741874«1874

1872018721874«1874187418741876

iJa.аe"я ^&.Я

Ун

wЯЪQ

0-5160-5690-6200-6230-929

0-9160-0790-0480-4180-3880-4370-8250-934

0-9310-9810-2990-3030-2860-2600-2090-2180-2590-3210-848

0-4730-4460-2620-2700-3000-2350-9870-7310-907

iai

1«H

V

IIIfc

о

6o-oпб'з115-2113-2114-4ion

276-6308-83274136-5129-5132-3103-3

98-2

281-0275-3279-2287-7281-6278-5172-1164-6159-8156-5

99-0

275-5275-120 ro219-3189-7188-996-0

106-193-2

HELIOGBAPHIO

•a

ï•3

о

1234ii7'9114-1113-5

82-480-7

20 1 -6I39-5I37-51 1 8-0117-7115-8

80-566-8

190-5201-3140-3

i39'91394138-0I 2 I " 5

119-8117-8115-3

65-2

140-2138-5117-9122-4115-3114-4

3I-365-847-1

õ•О

la

0

+ 10-8-i 8-4— 19-0-17-9-24-3— I2-O

+ 4-2- 17— 2-2

— 21'9

-18-5-21-3

-13-6- 9-3

+ 8-6+ 4-3— i"5+ i-i— ï -о— 2-1-13-8-i6-5— 18-4-21-4— lO'O

— 1-2

- 1-6

— 18'4

-l6'2

-21-5

-177

- 6-6

-147

- 47

SPOTS.

II<j>B

чGO

*O ^

itt•5

о59оо

(95)

0

IO

оо

54о

(64)

о7ооооо

510

(58)

7о

67оооо

(74)

IIrç'sol

f S.44м .ill•3

7393

32

(567)

348i

56

38039

(545)

6252

35

17Hn

36010

(534)

22

4379

512

3143

(568)

FACULTE.

a

1 .

il•4

95403

(680)

i8ic

no34°

(631)

661480

425(639)

960156200

(452)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculac relative to the Spote with which they ere associated are indicated by the letters я, я, p, f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Facnlte are expressed in millionths of the Sun's visible Hemisphere.

Group 1875, April 23. A very small faint spot. Group 1876, April 27-May 9. A large regular spot.

ON PHOTOGRAPHS TAKBN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN тнк YEAR 1886. 51

Measures of Positions and Areas of Spots and Faculea upon the Sun's Disk — continued.

GroonwiohCivil

Time.

1886.i i7 l l '524

Apr. 28

118*511

Apr. 29

119*389

i1я

H,EP

H,HP

H,EP

1ь

1та

tf

О

•sid «ff

14

187218721872187401874187718771876

18721872187218740187418781878187718771876

187218721872187401878187818781878187718771876

i>5í.sJ3

SiOã

«И DD

l 'Sй

0*6980*6760-6650-4150-3810-6470-672o*9i i0-9430-955

0-8930-8920-8470-8200-8150-5790-5460-2710-3410-4460-4880-7900-8900-892

0-9520-9310-8330-9470-9370-9200-7200-1240*1300-1500-1760-2640-3100-654

i03

1TÍi

Ia ,

's<CM

U

269-5273-0

270-3

232-9

227-3

89-5

90-7

95-2105-09 г >3

263-9282-8270-1272-2

208-8

H3'9242-2116-7115-5

91-191*195*2

114*9

282-7260*5251-9269-3

270-9248*6164-9I53-5148*0I43-9

87-890-395'5

HELIOGBAPHIC

1S*

о

H'4'39'5138-8117-51 14'3

57-055-031-52б- 524'5

'474145-8141-8138-9138-6U7-Iii4'569*9б5'856-754'93''922-3

20-9

143-2ЦГ2

128-3143-6141-6139-2II7-2

70-669-167*966*457'2

"54' 53'7

1•а£

о

- 34— i*i- з'о-18-4— 19"о- 2-9

- 3-6- 6-5-15-6- 3'5

- 7'3+ 9'5— 2-1

- о-б- 34-I8-I-I8-3— 1ГО

-12*3

- 4'2

- 6*6— 24'О

- 8*6

+ ю*7-ю-з-17-2— 2-О

+ 1-9— 0-8-I8-I— ю*9-10-6

— i i * 3— I 2 - I

- З'З- 3-9- 6-6

SPOTS.

«8 «8«J-OM 3й~

Чсо

-îî•3

о3о

74о0

о21

(98)

980

6iо2

4о0

23

(Ю7)

IO

0

10

43ооо4оо

'9

IISaoiи

•8™ •Ti sS SO3

3515827

36589

IO

164

(776)

1 86167

17365

233812

1

5185

(999)

220

49'44393

261 17

2966

188

FACULTE.

о.

О

•fl'Slá•»i|l•3

'430277179

(599)

1241 8o

)j i67c1

770'95338

(1081)

in76

'3')} 388c) •

1 14«

74.

GreenwichCivilTime.

1886.ii9(1'389

Apr. 30

120*433

May ï

121*406

May 2

122-418

iiя

Н,ЕР

HP.SP

H,EP

H,SP

1M

11fo•sio£

Й

1872

18721872

1874

18740

1878

1878

1878

1878

18761879

1879

18740

1874

18780

1878

18786

1876

l88o

l88o

1874«

18780

1878

1878

1878^

1876

i-S.eS

& 3бд

JrsiIю

b

0*7780*7840*8380*8310*964

0*9480-9370-9870-9850-9850-8560-8550*2460*1970*2030*1880*4480*8190*8910*880

0*9440*9270*4690*4030*3640-2380-9570*980

0*7820*9920*6630*6 1 I

0*6130*5580-049

i00

g4í

3

•ís'«•«ЧPk

o

99-789-9

IlS'3

IO9-I99-6

256-1

284-5

269*2

270-6

27I-7

253725Г1

238-3

235*6

226-7

220-9

97'3IOI-8100*2100*1

252*22517251*8251-3248-2102*2

80*7

80*2•

256*9

256*5

256*9

»537255*21794

HELIOQRAPHIC

1

s•S

о

21-6

2 ГО

17-817-0

3577

130*3iz6'5139*3138-5138-5117-1п6-871-068-267-365-932-2

3'93557357-0

116-5113-672-868-665-932*3

3337328-3

837115-973-669-769-665-832-6

•S

'rtA

о

— 10*0

— 2*5

—25*7

-io*3

-'44+ I2-I

- »'S— O'I

+ i-o-15*9-18*1— 1Г2

-IO-3

-II-9

— 12*0

- 6*8-11*9— 10*9— 10*8

-18*1-18*4-11-9— 10*9-11*3- 6*6+ 77+ 8*8

-12-5— 18-0-11*7— 10*9-12*8

-11*3- 6*5

SPOTS.

Il•«l-öк зSi

*Jrti?8 là•3

(86)

ооо0

69'S0

38

29оо

Он)

40о

49о

2б

2б

52б

(>72)

3876оо

28

*3

Il .3|w

•g*Ë 8(5

•*•

('079)

743935

83'*158

53045

196'38

(9*3)

372'3

4457

36718695

7'4(«99)

365 •524

56

375172

ГЛОтЛ.

P.

es _j-O

lõ

tl«i•3

1091736992

205('542)

231'31

)\ 70S«))f 3 l/c

iSic214

('779)

} 533C

)> 31 ic

(844)

83407/

The Group» of Spots aro numbered in the order of their appearance. When there is no number In the third column it is to be understood that there ie a Fooulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters «, *, p, f, i\ denotingrespectively north, south, preceding, following, concentric.


May ï. Faoultn ill-deflnod.Group 1877, April 28-30. Two small spots.Group 1878, April 29-May 6. Two small spots on April ig. Other small spots have appeared by April 30, on which day the group oonsiits of an irregular stream

of spots. The group develops rapidly on the two succeeding days, and on May t consists almost entirely of two very large spots, я and Ъ. Theee spots undergofrequent changes of area and shape on the succeeding days.

Group 1879, May ï. Two small faint spots.Group 1880, May 2-13. A very large, beautiful, and complicated group, consisting of a great number of spots, mostly of irregular outline, following each other in

a long stream so closely as almost to form ono large spot. It was not found practicable so to divide the group for purposes of measurement, as to measureprecisely corresponding portions on different days.

I 5 G 2

MBASUKBS OP POSITIONS AND AREAS OP SPOTS AND FACULJE UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Faeulse upon the Sun's Disk — continued.

GreenwichCivilTime.

1886II2-4I8

May 3

123-432

May 4

I24-553

May 5

125-454

May 6

126-462

May 7

ég

и

H,SP

ЕР,Н

H,SP

SP,EP

H,KP

1

1Л'Озfо"°a.£03

i88o1880

18780187818782-18761880188018801880

1878«18782-18761880188018801880

1878018782-18761880188018801880

1876188018801880188018801880

|

.S3g «"Я

JáК "SP.»'SД

0-8640-925

0-9120-8190-7840-7260-2390-7510-7970-8010-835

0-8920-9320-8770-4780-5680-6 1 80-6270-668

0-9810-9510-6450-3920-4440-4650-511

0-8050-2070-2650-2360-2770-3210-357

1a

IФ

1

||

h

o

77-8794

255-0258-3258-125742567

75'575-578-277-1

272-9259-5258-9262-7

69-072-669773-0

259-3258-6264-1

57-964-16 I "O

66-7

264-711-516-828-440-852-045-2

HELIOGBAPHIC

tJ

о

334-2326-1

84-873;9

65-3327

332-1328-0327-2324-0

67-i73'1

65-5327

332-0327-9327-8324-2

71-5

32'4332-9328-7328-1324-2

32-5336-6334'S332-S3*8-5

324-1

j

о

+ 8-6+ 8-4

-I5-I-II-6-iro-i 1-6- 6-7+ 8-4+ 9'3+ 7-2+ 8-7

+ го— iro-11-4- 6-6+ 8-8+ 7-8+ 97+ 8-5

— 1Г2

-11-9

- 6-4+ 8-8+ 8-1+ 9'9+ 8-6

_ 6-2+ 8-4+ 11-3+ 8-6+ 8-8+ 8-1-f- 11-3

SPOTS.

и•4\ry« g

Si

ill«1

2364(252)

8o0

322722

О

О

58(219)

54

26

18оо

зб(43)

73433267

7о

89(311)

Ч70

29о

430

(93)

IIHtj

ëlw

ïi*-IS"K «О0

121

821

(2389)

505

5378171329

i iH

59°(2003)

437546179302

35

738(2210)

408476146484

279

605(2155)

15167u

40769

48713

(1205)

FAOULJE.

o.

1

я «?5Я

il<

[ 5060

(996)129

297C

)

>43°6'

(856)

9i

f 5736'

(664)

[ 3 i8c

(318)

I2ÓC

(126)

GreenwichCivilTime.

1886I27'1485

I.

May 8

128-524

May 9

129-460

May ID

130-265

I.

May n

131-160

I.

May i2

132*145

I.

ú

я

8P,BP

Н,8Р

ЕР, SP

8Р,Н

ЕР,Н

8Р,Н

1

|

'S3

tCS

á

1876188018801880

18761880188018801880

188018801880

1880188018801880

188018801880i88iai88ii-

188018801882«1882

i.g

"Í я(5 J

JHí iÍ03

.а*8Q

0-8520-8940-2450-218O-2I2

0-907

0-984

0-43I

0-3590-3340-296

0-6130-5300-4740-941

0-94007550-6730-6260-5750-864

0-8870-8490-7700-3390-3520-917

0-9680-8940-7650-736

-M

OQ

I«Й

V

íв ..S .a

••s иg -ч

o

248-5264-4327-2343-8

247-1264-5297-5305-9303-7310-4

289-0293-6294-0944

259-0284-5286-7286-4287-2

94'5

281-4282-7282-0181-5

177479-2

279-4279-3264-6265-3

НЕЫООВАРШО

•SS•&J

о

32-8337-2ЗЗЗ'о3254

i5'9Згб

3344328-9328-0

324-9

335-3328-9325-3229-3

358-8

3294326-0322-3229-1

338-33337326-1277-5275-9211-5

338-5326-3313-6311-1

1á

о

-Ч- 5•f 8-7+ 8-9+ 8-3

— 22-О

- 6-0+ 8-6+ 9-1+ 77+ 8-0

+ 9-й+ 8-4- S'2

-1ГЗ+ 8-9+ 8-9+ 7-8+ 7'3- 54

+ 8-8+ g'2

+ 74-22'5

-23'3+ 8-7

+ 8-4+ 7-1- 5'9- 5'3

SPOTS.

II<JT3

S J-Staã•g x,

ela

29IO

3852(129)

o330o7

(40)

4i6

IO

(57)

59ii7o

(77)

34o40o

(38)

5o0o

IlH*daiSi

M•g £

•<

16252

332541

131435

605

278(9°9)

40080

171

(65 ï)

3934°566

(495)

2316

21

I I

7

(276)

119126l12

FACULTE.

|C5

II

11•5

399183«::

(582)

195

(195)

106(106)

1963616'

189(746)

1\ 4OIC)

188(589)

1I). 7,r, IV

The Groupe of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faeulse relative to the Spots with which they are associated, are indicated by the letters я, *, p, f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculae are expressed in millionths of the Sun's visible Hemisphere.

May 9 and 10. Spots and Faculœ ill-defined. May 11, 12, and 20. Photograph faint. Limb of sun very faint.May 18. Photograph faint. Faculae ill-defined. Group 1881, May 12-13. Two small spots, a and b.Group 1882, May 13-14. A close pair of small spots, a, measured as one. Another spot is seen in the neighbourhood of a on May 13, and another, but not the same,

on May 14.


Measures of Positions and Areas of Spots and Faoulse upon the Sun's Disk — continued.

GreenwichCivilTime.

1886.I32 l L I45

j'

May 13

133-091

I.

May 14

134-386

May 15

135-087У'

May 1 6

136-263I.

May 17

137-392

May 1 8

138-100I.

May 19

139-097

j

May 20

iя

SP, H

EP,H

dP,HP

U, EP

H, EP

EP,8P

H, EP

H, EP

11*

fT3ã2o•stà Я

iSSiaiSSib

18821882«

18831883

ij.sH J

o|

li

IIIoQ

0-4170-4010-904

0-9590-9050-8810-8670-966

0-9790-9260-8620-951

0-9530-9050-946

0-8570-905

0-7720-8740-948

0-942

0-5890-5380-867

i&1

•Bv"à

lir214-5207-9

79-9

279-7265-7264-6

77481-7

264-9203-8

81-4105-4

196-8163-396:7

i oo- 186-0

85-6175-0I I I - 2

I I 2 - I

254-7254-5I 1 5 - I

HELIOOBA.PHIC

à'S

3

278-6275-52OO-0

324-0316-1313-1192-5177-1

312-5281-5175-5162-6

270-3191-7154-1

150-8145-1

144-2185-0123-7

115-7

206-9203-4113-8

|í

о

-22-7

-23'3+ 8-0

+ 8-5- 5-0- б-о•f 9'6+ 74

1

- 5'5-594+ 6-2-15-4

-67-2-61-8— 7-1

- 9-8

+ 2-1

-624

-20-8

-21-4

-10-5- 9'9-22-5

SPOTS.

Ilа-яg sS|

с« 's S"e-SQ

о

4о

(9)

48

(12)

(о)

(о)

(о)

(о)

(о)

52

(7)

IIH -Ч

alи«*J.«1?|.o

о

igH

(237)

3248

(80)

(o)

(o)

(o)

(o)

(o)

87

('S)

FAOÜL.SI.

10

•s?lá'"та

1"

248

(Ю47)

980

1 8 ю-

9б98

(1255)

21344

'7337

(467)

5747

412(516)

239

(620)

16340

282(485)

695

(695)

630(630)

GreenwichCivüTime.

1886.I40d-403

May 2i

141-194

M.

May 22•

142-678

May 23

143-098

I.

May 24

44-573

May 25

145-449

May 26

§Я

SP,KP

H, HP

SP,EP

H, EP

SP,EP

H, HP

1fcl

1•ng

1О

*10«

1884

18850I 8 8 5 &1884

1 885«1885 с1884

1885«i885c1884

18841886

18841886

1Ja.aк"à

•ft JC

Q

0-9860-897

0-6660-648

0-9390-893

0-952

0-8670-8340-779

0-8230-927

0-917

0-8870717

0-8200-9230-996

0-9900-821

0-92404570-9060-952

0-8970-8370-287

0-8030-926

gOB

g43

•Sa

§5i B1

о

1ОО-8юб-о

287-9289-5IOI-0

93-2

279'9282-6

285-9ioî'3

91-5iiz-í

281-8284-5103-5106-591-095-8

281-8260-6194-0III -О

957по'4

201-0

273-*I2Ó-0

97'2и 44

HELIOORAPHIO

о!•в

I0

74'391*6

184-2182-6

74'6Sri

196-0183-6179-674-169457-9

184-6i8o-274-065-051-934-2

180-7154-313 го73-934-828-3

15Г2

Ч4'374'234'721-7

|s0

— I PO

-15-1

+ 10-6+ 11-2

— 10-9

- 3-6

+ 8-9+ 10-2

+ 12-3

-10-4

— Z'I

— 2Г1

+ IO-2

+ I2-I

— IO-6

-ч;з

- 5'9

+ I I-5- 8-5-64-7— 10-6

- 5-8— 19-8

- 8-6+ 2-1

-10-7- 64

SPOTS.

Ilá -saiBi«ils Sa

64

(64)0о

S3

(53)

i6о

73

(89)

23

0

89

(112)

81i l

(92)

635

(68)

IIи чo!ilфji*

287

(287)

52

386

(393)

4512

380

(437)

10929

377

(5 « S)

32760

(387)

32044

(364)

FACULTE.

Iол'Сlà•ï41

2980117(44)

37SC146

(521)

161)| 2Z7'-

448c146

37(1019)

! i86c

72C12710856

(549)

108137203

I4&C261

(857)

217239

64^206

(726)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there is a Fooulaunaccompanied by a Spot. The positions of Faoulro relative to the Spots with which they are associated are indicated by the letters n, », p, /, c, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faouliu are expressed in millionths of the Sun's visible Hemisphere.

May 24. Photograph very faint. Spots and faculto ill-defined.Group 1883, May 20. Two small spots.Group 1884, May 2i-June í. A large regular spot.Group 1885, May 22-24. Two very small spots, a and b, on May 22. 1 has disappeared by May 33, but a third spot, et has formed by that date and a has

increased in size.Group 1886, May 25-31. A small regular spot.

54 MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FAOUI/ЛЗ UPON THE SUN'S DISK


ïreenwiehCivilTime.

1886.14б"'52б

May 27

47-393

May 28

148-529

May 29

149-483

e

я

Н,ЕР

H, SP

SP, H

H, KP

1iÃ'OS

fo

2*

18841886

18841886

188418861887«18872»18870

1888«I888&18841886i887a188701887^

i-Savчliaoj

«w из

Q°

0-9400-9390-9020-7760-1690-6310-8120-866

0-9840-9710-9380-7730-2690-4670-7900-975

0-9050-4830-2270-6730-6940-7080-9070-975

0-9520-9230-8390-7460-8490-8350-6570-0850-5090-5400-548

'a&

í•И

â1||Hi

0

272-8253-9263-8246-4183-198-599-2

115-6

273-2264-8253-0243-9230-5

'10Г212ГО

80-4

245-5249-0

II2'4

72-371-673-078483-1

250-6249-3240-6266-8255-1256-0254-5186-6

66-2

68-866-9

HELIOGEAPHIO

.

1'So

1

о

ЧЗ'З142-61377I2I-7

74"o34-819-7l6'0

141-6138-2131-1109-8

74-334-914-2

345'S

109-874-335-0

6-55-03-6

342-8330-3

105-6100-4.87-882-591-690-274435-1

6-33-83-6

!'•gо

+ 2-3

-154- 6-1— i8-i— 10-7- 6-2

- 8-0-22-5

+ З'о- 5'3— 16-3— 20-4-10-7- 6-0—24-6+ 9-2

-22-4— 10-6

- 5-8+ I I -2

+ I2-O

+ H'3+ IO"2

+ 6-6

— ï 8-6-19-3-24-7— 2-8-13-0— 12-0— 10-6

- 54+ I I -3+ 10-7+ 11-9

SPOTS.

b h

•8-й"^Тз

я~чСО

°-$!я

886

(94)

707

(77)

6780

оо

(75)

47

6542

О

О

IM hдоНч

öS.5-•*§•СО

^л-КJ iQ

36045

(4°5)

321

зб

(357)

3232910

44

(37°)

3238

3331б40-21

15

FAOUL-Ж.

g

О

•S"?IQ

л g

4Ä

333120140231

76395

(1295)

178142260500

20444°

(1724)

293

438245

(976)

138'197

77251

Jf ' 5e

GreenwichCivilTime.

1886.149а>48з

May 30

150-544

May 31

151-524

June ï

152-417

June 2

153-089

I.

June 3

(ôM

я

H, EP

SP, BP

H, SP

H, EP

H, EP

£

1£'Sgí

ïj|M

i888ai888Zi188418891886

I888&18841889

188418891890189018901890

1890189018901890189118911891

1S.3кláQí P

IIÚJ 'S

0-7920-9040-916

0-9320-9130-8700-7670-9610-9360-8170-4170-2710-8660-883

0-9890-9240-603

0-9270-9810-7480-3130-3310-3710-389

0-1950*2130-2460-2620-7620-8070-783

"iCG

1Co>

1J jir

u

76-782-994-5

240-727.6-2263-9251-8257*2256-6257-3306-9

.251-977-698-5

257-1258-8294-8

266-6259-4289-1

54-757-264-160-8

24-631737-847-7

109-2109-2107-6

HELIOOBAFHIC

I1

0

3434330-3328-4

86-385-968'993-989-1

' 7444°435'3

321-3318-8

88-674,- 541-7

63*374-042-2

340-6339-3335-9335'S

342-0340-2337e93354298-8297-5

13о

+ 1О-2

+ 6-1

- 44

— 27'3+ 54- 5'5-14-2— 12*4-12-7— 10-6

+ Ч'°- 5'3Н-ю'4- 77

— 12-8-10-5+ Ч'З

- З'З-10-4+ H"0

+ lO'I

+ 10-0

+ 9"°+ 10-6

+ 10-0

+ Ю'2

+ 1ГО

+ 9]9

-15-5-13-8

SPOTS.

ч кдоЗаsiяГöS.

* ъ|"а

(82)

и5667

ï2

(137)

4566

5(по)

бзо2

О

О

о(65)

о8ïï4оо

(Ч)

t-t Liдо

alSucj"§ 5"K S) Q

(495)

138181337

20I I

(687)

241

282

Ч(538)

235IO

8'949

(285)

6359

4i174

Ч(126)

FACULTE.

1âА~Ц

ТЗcfl вJÄ

641595194

(2278)

4370

264122

)} 22 и;

мбс

2о8172

(1236)

)/ 494'-'

(494)

loi252,4

(413)

)j 476

(47)

The Groups of Spote are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there ig a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, я, p, /, ,1, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculaj are expressed in millionths of the Sun's visible Hemisphere.

June 3. Photograph faint. Facula) ill-defined.Group 1887, May 39-30. Three small spots on May 29. One of these has disappeared by May 30, and a new spot has appeared.Group 1888, May 3o-June ï. Two spots, a and I. Both have increased in size by May 31, and have receded from each other.Group 1889, May 31- June 2. A small spot.Group 1890, June 2-8. A number of small spots in a straggling stream. Most of these have coalesced by June 6 to form two spots, a and b. Only a and b are seen

on June 7 and 8. ' 'Group 1891, June 3-12. Three small spote on June 3. The group has very greatly increased in size by June 4, and forms a fine stream of spots ; tho preceding

spot, a, being a large regular spot. The group continues to increase in size until June 8, after which it diminishes again, and the spots nearest to a disappear, nalone remains by June n.



GreenwichCivil

Time.

1886.I54'h382

June 4

•«55473

June 5

156-572

ú

íя

SP, H

H,EP

SP,BP

3s

•oI

1O

1Ífc

1892018901890189018901890189018910189118911891189118911891

1892 Ъ18920189018901890189018910189118911891

1892 Ъ189018900iSgou18930i 8 9 3 &«89418910

i.aя •

(3.3

lis "iК

0-898O-82O

0-6460-2970-2840-2750-2630-2380-1990*5240-570o's680-5890-5900-5910-612

0-8860-8400-8090-4410-4400-4010-4090-3220-3800-4050-448

0-9320-8880-9170*9530-6610-6610-6020-6190-5880*5410-275

ix§Л

•И,1я ,

líHиo

266*5241*8249*0302-8304-7310-5307-8323-3328-6118*8117*0114*2119*2117-2114*0118-4

243-9255-12527292-0295-3295-2299-2143-4134*1127*2130-6

282-6238-0190*9257-0

286-0287-7262*3260*7279-2196-8

HELIOGRAPH IG

v

'fw

о

ЗЗ'З2Г1

7-8344-3343'334«'9341-8338-03357301-5298-1297-62974296-8296-1295-6

14*811*3

7*83397339'133б*8ззб*б3°3'9299*о296-0294-6

8-8359-0

12-3

34I-«340-8ззб-з338-5336*2ЗЗЗ'о305*4

ш

3

Ãо

- 3-2-22'7

-«З'З+ 9'2

+ 9;з+ 9'2+ II-0

+ 9-8— 14-6-15-0-«34-i6*6-15-6-13-8-16*9

-22-8

-12-4

-i3;8

+ 9'9+ 11*6— 14'8-15*1-14*о-IÓ-8

+ П-8-27'9—64-0-12-3

+ 9'«+ 10-7+ 10-7- 4-6- 5'3+ S'«-15-0

SPOTS.

33«1

Stчн»•g

|!1

оо2

О

0

0

о33

о3о0

185

(б«)

оо0

оо5

82

67

10

(но)

оо

«512

О

О

0

75

33«10-2-я

о!"•н .j.iiï«

5487

H' «3n

20218«412

3562О

(397)

Зб«Su23IO

21

4°36l

534«

(674)

188

7947

785

398

FÄCHLE.

P.

0

л "кláM S

44 T3

•5

87300

(387)

«57)

) °

(«3)

6512478

23SC

[249?

GreenwichCivilTime.

1886.i56d'572

June 6

157-429

June 7

158-402

June 8

159-420

June 9

и

1Я

SP, ИР

H, SP

H, BP

EP, SP

3

1 '1fJ•Bj£

189118911891189118911891

189001 890 i1893018932«1891018911891189118911891

1890018900189301893618910189118911891

18910189118911891189118911895

1.9S

44

<§йЯ

lá«Д_ю

l 'SQ

0-2340-2690-2500*2920-2590-306

0-9850-9230-802

0-73907730-731

0-3310-3170-2870-3140-304

0-9180-8670-8960-862о*5380*4440-4420-418

0-949о'9340-8480-7040-6580-6290-6210-6090-5860-931

«A

"gaã§

•f

ЙPu

0

181-5

180-2172-8168-0163-9160-2

255-9241-2282-6283-7263-6262*2225*0219*0212-8

2O6* I

2O2-7

196*1

280-8

281-4

2б4*3264-9

240-6

232*9228-2

225-5

265-2

280-I

256*8

248-5

247-0

246-2

2437

241*0

240-8

84-8

HELIOGRAPHIO

"Oã

"

o

30I*I3OO-8298-9

297*1296-5294-5

8-7353-534--8336-0339-5335-8305%5301-7299-5296*8296-5294-3

335-83397335-6305-3297-8296-4294-4

334'*33« 'S3I9-9

3014299-2298-0296-5294*9194-6

••3

iÁЧ)

-13-3-«5-3-I4-I-1б*з-Н-2

-1б-5

-13-8-26-2

+ 10-3+ ю'з- 4*8- 54-«54-14*6-I5-I-14-6-1б-5-i6-6

+ 10-1

+ 10-0

- 5*о- 4'*-14-9-«5-1-16*7-16*6

- 44+ 9'6— 10-8-14*5-144-14-2-«54-16-6— 16-0+ S1«

SPOTS.

33«l-o«Sя~

В*s"8 -,

ill•<

оо0

937

(121)

IO

ооо

79и0

оIO

I I(121)

О

0

о0

81«4б3

(Ю4)

94ïо

«35оо

С«3)

33Н-о£3О-2-

fel«*•g îll•5

59

u75836o

(8«3)

6o«9«93

45«72So737648

(87«)

6726HIO

589744633

(859)

5293

IO

5722

9l6

(646)

FACULjK.

в.

о

IoёЗ«M ^

'S|1•<

(74*)

«5073

173Р

(39°")

| 3*5''

(325)

»37597

59

129''(юн)

The Groups of Spote are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Fooulaunaccompanied by a Spot. The positions of Faoulio relative to the Spots with which they are associated are indicated by the letters », », }>, f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculto are expressed in millionths of the Sun's visible Hemisphere.

Group 1892, June i-6. A small spot, a, on June 4 j a second, b, has appeared by June 5 ; « has disappeared by June 6.Group 1893, June 6-8. Two small faint spote, a, and b.Group 1894, June 6. A very small spot.Group 1895, June 9-ю. A small spot.

56 MEASUBES OP POSITIONS AND ABBAS OF SPOTS AND PACULA UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Paculsa upon the Sun's Disk — continued.

•rreenwichCivilTime.

1886.l6od'30I

I.

June 10

160-402June ii

161-383

June 12

163-601

June 13

164-199M.

June 14

165-508June ï ;

166-460June 1 6

167-500

June 17

168-164

I.

June 1 8

îíя

SP, EP

H,SP

H,SP

BP,H

H,EP

EP,SP

EP,H

M,H

H,BP

1

1

'S3í1ufc

1891018911895

18910

18910

18960

189601897

189601897

i.s1 •6|lá

•H ta

IIG

0-9660-9290-8240-7590-842

0-935

0-9900-9390-957

0-8500-8660-902

0-942

0-955

о-86з0-9910-9320-955

0-9060-7840-9640-8880-8860-981

gM

a1

S

Jf

Й «t•~-a1-Яfi

о

278-52ÓI'3252-0248-0

84-5

254-6

255-594-680-9

77-593-4

105-0

116-1

105-7

108-2101-9104-8

92-9

•253'9II 0-6

102-5105-594-295-4

HELIOGBAPHIC

1

tЛ

0

32Ó-I

319-0305-1298-2194-2

304-9

305-0i54'31 5 го

150-2148-01 44' S

194-8

98-2

98-374-588-6837

210-8

98-173-786-185-368-8

4sã

0

+ 8-4- 7-8-14-3— 16-0+ 5'1

-14-1

-14-3— 4"o+ 9-0

+ I I - I- 2-4— 13-0

— 24-0

-14-6

— 14-9-II-6-13-2— 2-3

-13-8-15-0-iro-13-0— 3-0— S'°

SPOTS.

Il•Чтзg 1.§"§^M

jlî•3

102

3о

(i°5)

76(76)

61

(61)

(o)

(o)

(o.)

18(18)

i9о

(19)

22

Si

(73)

II

OÄ

te?

•H •|||

•5

49°44

7(541)

475(475)

377

(377)

(о)

(о)

(о)

из(ИЗ)

82

296

(378)

102

253

(355)

FACULTE.

о.

C5

•S"*láilA<

2721521 1840

206e

(874)

663/

(663)

555/226

85(866)

81343241

(665)

(o)

156(156)

209C(êj-2C^1316-6ip

474181

(847)

8282C

103034910780

(803)

GreenwichCivilTime.

1886.l69d'429

June 19

170-366

June 20

171-196M.

June 2i

172-549

June 22

173-385

June 23

I74-393

É

aЯ

EP,H

SP,H

H,BP

8P,H

SP,EP

8P,H

1

1

•a3tí

о"!$£

189601897

189601897

189601897

189818981896018971899

189818981898189618960i89718991899

1898189818960

i.g

l§1д

s f9м.1 'SQ

0-5900-8450-898

0-44007190-970

0-3250-574

0-9210-8780-8250-6370-5840-3290-3460-7300-9410-977

0-9440-93007850-7410-7180-4550-4450-2500-5730-5950-905

0-9150-8770-608

'Л

§ейs1

•â

§ А13&

о

u8'3104-6

99-6

1304108-3

94-0

151-9112-6

260*6

270-9

247-1280-8

282-3

206-5

133'196-2

I 1 0-6

I03-2

266-6

253-9279-I

280-5

279-2

233-2

228-4

165-4

99-0

98-6

I I 3 - 2

278-4

278-6

240-8

HKLIOGUAPHIC

41«

о

98-174"267-4

97-974-142-5

98-074-6

1554150-3141*7128-2124-2

97-874-242'72 I - I

12-4

148-5145-О

129*6

I25-6

1237

1 00- 1

98-374-543-842-216-2

130-8125-898-0

4êÃ

0

-I4-7

— 11-3

- 7-8

-14-7-11-7- 3'5

— 14-6— iro

- 7-8+ J-9-17-4+ 8-5+ 8-9-15-0— 11-6- з-i+ 18'5— 12-4

- 2-5-14-1+ 8-5+ 9'3+ 8-1-137-15-1-11-7- З'З- З'З

+ 8-6+ 8-6-15-3

SPOTS.

Il«Ira

SIЯ^«J1 _

g||«I

i l42

(53)

i i22

О

(33)

1521

(зб)

6о

15190

(40)

232

О

0

IO

IO

I0

(46)

IO

оH

II

§1g!W-8

« .«||

•Si

118240

(358)

1052OI

34(34°)

91

168

(259)

433585

ИЗ7

(313)

7855

55

77129i i6

(366)

951648

FAOUL.S:.

P.

0-.-";

láIII1•Ч

I IOC

92(202)

6901940

(о)

2477870

87/337in

(930)

423198

lOie

281(1003)

1 n8c

Тле Group» of Spots are numbered in the order of their appearance. When there is no number in tho thud coiumn it is to bo understood that there is a Faculaunaccompanied by a Spot. The positions of Faculœ relative to the Spots with which they are associated are indicated by the letters я, *, j>, /, с, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculœ are expressed in millionths of the Sun's visible Hemisphere.

Group 1896, June 16-26. A repfular spot, a. A email companion is seen near a on June 23. Group 1897, June 17-28. A large regular spot.Group 1898, June 22-24. Two compact cluster* of small spots on June 22. Three spots on June 23 ; only the largest two remain on June 24.Group 1899, June 22-23. A very small spot on June 22. A second is seen near it on June 23.

ON PHOTOGRAPHS TAKBN AT тнв ROYAL OBSHRVATORY, ÖRKHNWIOH, ш INDIA, AND IN MAURITIUS, IN тнн THAR 1886. 57

Measures of Positions and Areas of Spots and Faculee upon the Sun's Disk. — continued.

GreenwichCivilTime.

1886I74d'393

June 24

173-391

June 25

176-417

June 26

177-484

June 27

178-398

June 28

1

A

SP,H

ВР,Н

SP,H

ВР,Н

SP,H

1f1аf(S

á*

1897

18960!897

189601897

18971900019002»19010

1897igooo190061901019020

|

.aItО.ц

JÎ«Я u

К

0-2910-9630-985

0-9650-9350-9140-7620-4480-8810-9260-949

0-9790-9230-9370-8Ç20-9030-8330-8860-6260-907

0-9020-7860-6270-6710-990

0-9530-9520-8950-4380-4930-9430-950

"i&а1»

fa

Г

0

2I3'6

78-794-0

278-4

250-8

245-72474

236-9

78-594-6

827

247;5

237-1270-9232-0254-22507247-0817

255-2252-6

75-676-51057

268-8256-82547

70-572-1

106-971-4

HELIOQKXPHIO

|

o

74-2350-6345-1

126-3u 8-6114-498474-0

350-0344-2340-0

114-0103-6102-4

96-395-292-798-173-9

333-0

86-7737

3457342-3303-3

83-882-673-6

346-9343-2302-9300-3

4

S0

-u-7+ I I - S- 3-6

+ 8-8— 16-9— 20-9-I5-5-II-8+ I I-3- 3'3+ 7'7

-21-4-14-1-294+ 2-1

-32-4-11-6

-157

— 12-0

+ 8-6

— I2-I

-II-9

+ I I - J

+ iro-15-1

- 0-3-117-12-44-iro+ 1Г2

-14-9+ I8-S

SPOTS.

Il.4-0 ;

а вSÄ

•8й .л

ilî•<

7

(30

IO

9

(19)

.

5Ч

(i 8)

7iо0

(8)

0

оI

527

(6o)

е ё•нчЗ

Hnsь! Io-iË -вl* J.

|1S

'l 02

(26l)

43113

(«S«)

1792

(109)

792536

244(384)

21

30

32

83

(530)

FAOÜLJ3.

1l _

•S "K8(3

II

il

517136

(77«)

401104161I37C

550120

523(1996)

1067886636288

:ooc

4SI

155

2390(394)

1811691628

4620182/

(u 56)

GreenwichCivilTime.

18861 7 9d- 4.06

June 29

180-393

June 30

181-413

July ï

182-391

July 2

183-399

Jg

»

BP.SP

SP.BP

SP,H

H,BP

H,BP

11•ëpяtí

1 .

S*

19011901190101902019030

190119010190119011902019030

1901190119011901019011902019030

1901190119010190119020190319030

19011901

1.9

lri

11ùЧей

0-9640-95007200-8250-8360-8480-86.50-938

0-9550-8490-692071907100-7330-7380-849o-giS

0-5290-5530-54°0-5710-5960-5830-7300-956

0-3850-4080-4220-4580-4190-602

0-594

0-9270-316о'ЗЗЗ

iсоа

1

-а1а .

J3о

254-8263-82557I Ю'О

II2 '3Ю9'8

70-2

I I 2 - 5

269-32 Ó I - I

пб'4IH-311Г1

117-867-2

115-971-3

125-31287120-3122-7127-461-6

122-2

87-5

I44-5146-71384142*2

50-6I34-6132-2

247-8184-9179-2

HELIOGRAPHIC

1

ï

0

71-469-643-0

305-3304-7302-9

299-5291-5

57-942-6

305-5302-9302-83027299-7291-3279-3

3054305-0303-3302-1302-0299-2290-7259-0

305-630S4302-1301-8299-0291-5291-0

10-6

307-1305-2

тзiо

-13-8- S'o- 8-2-14-6-16-8-15-0+ 18-6-19-9

+ 0-3- 5-9-15-6-15-0— 12-6-177

+ 18-6— 2O-O

+ I8-3

-15-0-17-4-13-0-15-2— 18-4+ 1 8-7-20-5+ 3'3

-15-1-16-8-15-2-18-1+ 18-4— 22-1— 2O-6

— 19-1

-H'9— 16-0

SPOTS.

IIд i

§1li!

oo

51187

(76)

549

o4

17

(88)

4o0

591682

(89)

O

O

59IO60

o(75)

3- o

II

o— »

E**ï*

417

36977

144(638)

126347

12

96

69

130

(780)

552718

361153S2

76

(742)

2520

348117

524

49(615)

IO

2

FAOUL2B.

|

J _

•s?a *SP

.gl

|!

498486

259C

11701720

(877)7099

> 3O2C

iдбс26l/

6o(888)

100

(100)

(o)

208

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faoulœ relative to the Spots with which they are associated are indicated by the letters n, г, p, f, e, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faoulœ are expressed in millionths of the Sun's visible Hemisphere.

June 27, Faoulœ very faint. Group 1900, June 37-28, Two small spots, a. and *.Group 1901, June 37-July 9. A large regular spot, a ; several small spots have formed near a by June 39, and these increase in number and siie on the two

succeeding days. After July ï these companion spot« begin to diminish again, and by July 8 я alone is seen.Group 1902, June 28-July 4. A regular spot, a. A small companion is seen near it on July 3 and a second on July 4.Group 1903, June aq-July 9, A large but rather faint spot, a, on June 39. It diminishes in site on the succeeding days. A small spot appears near a on July »,

and others on the succeeding day, when the group hoe become an irregular stream of «nail spots, a and the other spote in the preceding part of the group havedisappeared by July 5.

GBBBNWIOH ODSBBVATIONB, 1886. 6 H

58 МВА8ШШ8 OF POSITIONS AND ABBAS OF SPOTS AND FAOULA UPON THB SUN'S DISK


GreenwichOivil

Time.

1886i83d*399

July 3

184*404

July 4

185*407

July 5

186*402

July 6

с

Iя

Н,ВР

Н,8Р

ВР,8Р

Н,ВР

1M

1»оgл

0

1Ífc

1901190Ю190119020190219030190319031903

I90I19ОЮI90I190201902190219030*19°31903

190119011901019°31903

190119010190319°3

is.аèIsД о

<Öj«

ÍI5Jbя

0-3530-323о*37о0*2780*2870*4650*4800*504О*5120*912

0-895о*3940*360о*39о0-285О'ЗО20-2390-4160*4530-404

0*9230*8960-5110*4900*4860*4220-400

0-9710-9470-6630-6440-5330-499

СО

"S

я4Î

I

a

WВн

о

174'9169*5i68'7

20*9З-Ч

151*1152*1152*4140*4100*4

278*7210*1

20б*4201*5334-0342*4341*6180*1176*7164-3

280*5264*22244224*0229*3200*1196*6

264-9278-0238-1

240-8

223-52I9'6

HELIOGBAPHIC

•оj»

Л

о

303*6ЗО2-ОЗО1*2299'5296-52917291-6290-8285-3240-8

355-8304-1301-8300-9299'8297'9296*8292*4290*7285-7

34б>3342-0Зоо*9299*730 Г2

287*7285-8

34'"5337-3301*9

288*7285-5

4

1j

о

-I7-I-I5-I-17-8+ 18*4+ I7-5— 20-6

-21-7

— 23-2

— 2О'О

- 8-0

+ 9'3-16-5-15-3-17-8+ 18*3+ 20*1

+ i6*5— 20*9-23-3-19-3

+ 11*1- 3-6-18*0-17*2-15-1-197— 18*9

- 4'°+ 8*8-17-5-I5-3-I9-3— 19*0

SPOTS.

Is«H «H

«l-oPH gP5-2-чt/1"8 ,A

ela•3

i6112

8oIo3o

(89)

o6oIO

ooo7oo

(77)

70

6o8

(8o)

o45

7o

(52)

0 0*Н*Н

«•gл go-ä-S-•мю .

•iff•3

16325115

174

37874

(545)

i i33679

552

3575

(485)

27H

3032046

(410)

24308

5639

(427)

FAOÜLJB.

0.p5jaó

1|

•8*8

si•ч

65(273)

175

•

075)

473164

(637)

i i 6337

(453)

GreenwichCivilTime.

1886i87d*5oo

July 7

188*518

July 8

189*420

July 9

190*456

July io

191-638

July ii

192-119т1.

July 12

193-472

July 13

iiяH,SP

H,BP

H,SP

BP,SP

EP,SP

H,BP

BP,SP

1M

êM

T3g

fo13 1doaЙ

190101901190319031903

19010190319031903

190101903

•

19041904

is.aëa gâ. 5

í íg "g

j ïs

0-9830*9640-8000-7300-7000-6810-654

0-8650-9120-8160*7850-783

0-9470-9740-8840-923

0-9660-9180-965

0-9090-885

0*9400*7960*869

0*6780*6620*929

Xs.. 05

g

S«H

1g .

14Hi

o

264*228l*8248*1246*5238*123S-5233-6

287*62517'

242-3241*62397

287*6

253-9245*6107*3

246*1111*0

82*2

27I-282-9

271-682-6

83-1

250-3248-8I IO'4

HELIOQEAPHIO

f

^

0

330-1326*1301*3294-8290-02877285*1

297-2301*3287*7284*6283-4

297*2300*9284*11 60*7

284*0148*5137*2

261*7134*1

260*1137*4129*8

212*521ГО

106*9

41о

- 5-0+ 12*4

-1+-9-14*2-i8*7— 19*6-197

+ 17-1-14-9-197-19-2-I9-3

-r-iS-o-14*7-I9-3-14*1

-21*8

-17*4+ 8*6

+ 2-9+ 8-2

+ 3*o+ 8*5+ 8-1

- 9-8— 10-4-17-1

SPOTS.

SS«ЙЧН

$ък g

Su•н02 .

s||•5

65ооо0

(65)

Siооо

(SO

47о

(47)

(о)

(о)

(о)

оо

(о)

е ё4<чн

Ей TI

o-iи«.&

jll•3

.3615

3843

(478)

3311622

12

(380

2886

(294)

(о)

(о)

(о)

44

(8)

FAOUL-E.

frg5

»Ч 1lá0<S

ïï; -Ч

1311942I7C

(542) .

199293C

)У м8с

(6.0)

209334С2920149

(984)

4191051 08

(632)

87246

(333)

4393

249(485)

ISS055)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculro relative to the Spot» with which they are associated are indicated by the letters n, t,p,f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spote and Faculœ are expressed in millionths of the Sun's visible Hemisphere.

Group 1904, July 13-14. Two small spots.

ON PHOTOGRAPHS TAKEN AT тнн ROYAL OBSERVATORY, GRBHNWIOH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. S9

Measures of Positions and Areas of Spots and Faculaa upon the Sun's Disk — continued.

GreenwiohCivilTime.

1886.I944>389

July 14

195-466

July 15

196-387

July 1 6

197-128

I.

July 17

198-557

July 1 8

199-200

M.

July 19

tí

1

SPjEP

EP, SP

SP, EP

H,EP

SP, EP

'

H,EP

1âi1и

o•tí -ia

dl

190419041905

1906

19061906

1907

19060190619061907

19060190619061906190619066

190601906190619066

1

.S

S Э

а иIp5

Úh

0-8190-7930-5150-901

0-9140-972

0-9830-8940-9240-9630-864

0-7950-8150-8480-909o-giá0-960

0-5430-5780-5950-6110-6490-666

0-8930-8320-4120-4450-4710-558

i03

I•B•a3

8 j jwäF(Ц

o

254-1253-7236-6101-4

256-3IOI-6

258-0103-3103-11114

92<3

104-7106-4105-5113-2

92*2100*2

113-2113-9112-3

111-9113-2

251-4244-8121-9120-9117-7117-9

HELIOQBAPHIO

4s

I

0

213-2210-6

186-2

974

2IO-370-9

2 I I - 8

71-967-862-274-2

' ( "• О

73-071-467-9

62-1

57-651-8

74'972-871-470767-566-6

157-2148-6

76-074"о71-866-6

ï3

о

-ю-з— IQ-O

-12-4

- 77

-10-5— IO-2

— ю'9- 9'7— IO-2

— 18'9+ 0-4

- 8-6-10-4-10-4-18-8— 0-1- 8-4

- 8-2- 9'5- 9-1— ю-б— IO-2

-II-4

-I4-I

-177- 8-0- 8-6- 8-2— 10-9

SPOTS.

Il«1Я •§

и1

-•§?l lá^

0о2

(*)

О

9оо

(9)

1749о

(30)

4"6оо7

i8(72)

'

4*3ï

!9(65)

Il

SI0~

S •§•ë^j là

• 2з329

(64)

42

(42)

8041

13

(134)

103

6416

(210)

244

25

5167380

(443)

2163312

125(386)

FACULTE.

&0

I?8o

•s|J!

i í c f rí I3 i c

360(SU)

90

(420)

471 286c

IÓ2C88

(683)

]} 288c)

263/48

119(718)

(o)

7775

( 'S»)

GreenwichCivilTime.

1886.200d>403

July 20

201-421

July 21

202*408

July 22

203-2I7

M.

é

i

SP, EP

SP, H

BP.SP

H,HP

1

i1g

?*r

1906019061906190619066

1906019061906019061906190661908

19060190619061906(2190619061906190601906190661908

1906019060*1906

1-S.9

Isai?БМ

JJ

i"8

0-9560-8780-8200-8690-2430-3230-3240-3480-3770-985

0-9060-2880-2770-2720-2630-2730-2800-9520-939

0-9500-8670-4540-4570-4090-4250-4550-3970-4100-3810-3610-3410-8510-8640-928

0-5930-5650-533

i00

S

1

0»

S

J 4!ío

257-0248-5275-6238-3163-2146-0141-4138-778-1

275-0215-7192-5187-8184-5179-9173-394-479-1

275-3239-9239-2231-2»38-5233-0226*4231-0226*4224*6216-9215*296-479-4

125-1

248-5244-4243-8

HELIOGRAPHIO

1í

о

i5i*9138*7135-8134-6

76-s70-168-867*2OS'S

359'9

132*276-870-669*268-367-065*2

355-5356-8

126-0108-2

77-175'274'S74-173772-171-669766-7OS'S

356*4354-03534

77-074-372*1

V•оs!

о

— ю*9-1б*2

+ 74-»4'3- 8*4— ю*6- 9-8— 10*2— 1ГО+ 12*6

+ 6*7- 8*5-10-5-ю*4— 1О-0— ю-б— I1-O- 2*6+ 12*0

+ 6*7-227- 8*6-11*7- 74- 9'9-13-3- 9'5-и*4-10*7-11*6— 11*0

— 2*7+ и*8— 29-8

- 8-1- 9-б- 8-9

SPOTS.

Il«1И-i

s?***J!Q

75iSо2

IS

(107)

7ii5оо8

13

(98)

8lооо0

о0

14о8

Ч

(117)

6i0

4

IlsiSA5"g

«iîШ<1

3«546

722

84

(474)

3595

ï?388

6899

(594)

36046

2912

S360

22

6398

(662)

3433616

FAODLJB.

|0

•S"*SU

«iI1

176»391415°

«95(901)

184

35IC602

(437)

So84

2730269105

(78i)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, t, p, /, o, denotingrespectively north, south, preceding, following, oonoentrio.


July ï;. Photograph very faint. Spot« and Faouleo ill-defined. Group 1905, July 14. A email spotGroup 1906, July :5-зб. A small spot on July 15. The group rapidly increases in size on the succeeding days, the preceding spot, я, becoming a large regular spot.

a is followed by a number of spots in a long stream. Somo of these spots coalesce to form larger spots, b, a, and d ; and on July за, and the succeeding days,the group consiste of the large regular spot, a, followed by three smaller spots, b, c, d, with a number of very small spots scattered round them, a has undergone .a remarkable change of shape by July 34, and a considerable portion has become detached from it by July 35. Ь has disappeared by July 3$, 0 and d by July 16.

Group 1907, July 16-17. A "»mall «pot. Group 1908, July 91-31. A regular spot.

SHS

во MBASUEES OF POSITIONS AND ABBAS OF SPOTS AND FACUI/Д: UPON THE SUN'S DISK

Measures of Positions and Areas of Spots and Faculte upon the Sun's Disk — continued.

GreenwichCivilTime.

1886203d-2I7

M.

July 23

204-404

July 24

205-198

M.

July 25

206-388

July 26

.

iя

H,EP

H,EP

H,EP

SP,EP

1

1•S1eC

!Ô

1!»

190601906190601908

190601906^19061;190619060190919091908

19061906019060?19061;1909190819100

190601908191119119119119129129100

as.ae'S»6-3

1*!li.1*8Q

0-5150*4900-4620*7410*9OI

0*7800*7600*7210*6920*6670*4940-5440-5340-929

0-8860-8720-8590-8320-3250-3820-9790-938

0-8650-9720-1720-4540-4900-5110-5430-8730-8990-8980*8260-976

«Q

§02

|•H

•â-S.§.3

.*

o

240-22454234-2

98-782-2

254-22SI -3249*9246*8246-9

84-384-5

104*2113*7

259-0256-3

253-583-1

I I2-I104-6II 2*4

240*4258*7I 5 I * 5102*6102*5100*299-573473-9

I07*6Il6'3U3-0

HELIOGBAPHIC

i3

о

70-269-865-6

35б"3338-8

76-874-570-967-966-1

358-0354-6356*5323*2

78-276-174-271-2

358-3356-5300-9311-1

55-576-4

3567335-2332-9331-3329-2300-5297-2300-1310-5287-4

Í

•3

o

— 10*1— 7*1-107- 2*8

+ 9'3

- 8*8-10-5-10-5-117— iro+ 7-4+ 7-5-197

— 7*1- 9*2— 10*6-10*5+ 74

-13*1— 18*8

— 22*2- 9-6- 3'2- 0*7— 1*2

- 0*5- 0*5+ 17-2

-I3'1— i 8*0— 2ГО

SPOTS.

II«1я*

-il•ч

5оо6

(76)

586оо0

оо

II

(75)

0

37о0о

1616

(69)

Чi8ооïо08

27

(69)

II

ai0-2.

"fCG•s .j*.K ÍQ

•Ч

32

4i876

(525)

3525657138

231683

(608)

32245

7

12

831 6o

(S80)

177ЮЗ

l6

II12

99

64182

(583)

JFAOVLJB.

&0

а _•я?lá-iBC.<i

107(107)

132(132)

81(81)

135

ií

2OIC

97118

(494)

GreenwichCivilTime.

1886207d>492

July 27

208*433

July 28

209-448

July 29

210-508

July 30

nк

Я

EP,SP

EP,H

EP,H

EP,H

1

I

1

80

&

190819110

19121912191219100

190819110191 ib1912019121912191219100

19081911019120-191219121912191219121912$19100

190819110191201912191219122»19100

i.g

и яn't

Jãl-sQ

0*9530*8940*2340-1960-2540-7470*7600*7900-7740*9130*942

0-4120*0910*1130-5560-5790-5970-6280-6330-880

O'6lO0-3030-3590-3900-4050*4210-43804520-4690-468

0-7810-5260*2040-2240-2460-2830-343

ica

§•fi

if§.s

&H

0

2457255-3227*9ii 6*91 1 6-071-273-8737

112*6115*9

87-8

2494213-9170767-966-168-970-O

I i g - I87-8

257*1257*2

56-556*359-063-566*663*165*4

132*7

26l*32б4-5

i8"430*541*450*4

161-7

HELIOOBAPHIO

.

|

а

o

55-248-1

356-8336-83337299-1297-6294-5299-7285-5276-4

357-0337-33334302-0300-7298-9296-5299-9272-7

357-3338>o302-8301-1299-7297-9296-4296-1294-6300-3

357-3338-4303*1300-1297-2293-8300-6

iÁ

o

— 2Г1-10*4- 3'5

- 0-9+ I7-7+ IS'9+ 17*2-I3-5—20*9+ 4-0

— 3*2

+ 1-4— 0*7+ 16*9+ 18*3+ 17-1+ 16*9-13-2+ 4'7

- 3-2+ 17+ 16-9+ 17-9+ 174+ 16*2+ I5-3+ 17-1+ 16-4— 13-1

- 3-1+ 2*1

+ 16*9+ 16*8+ 16*3+ 16-0-13-2

SPOTS.

II($1ËBI

ill•4

169o

1 14o

46

(86)

21

4o

18oo

1528(86)

'34

12

Oo0o2

12

17(6o)

12O

12OO

526

(55)

е ё•й«й

H-e

2"^jsi

ill•5 ,

112

3721

ИЗ

32

31196

(542)

ИЗ20

3

96

516

"9188

(56o)

10815

132IO

675

2583

156(547)

948

1243*4359

139499

FACULTE.

P.

в

li-sa|l

•ч

213104

)f 277C)

1 66с255223

(I238)

147

(147)

(о)

(о)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there it a Faoulaunaccompanied by a Spot. The positions of Faculté relative to the Spote with which they are associated are indicated by the letters я, »,p,f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faonlœ are expressed in millionths of the Sun's visible Hemisphere,

July 24 and 28. Spote and Faculœ ill-defined.Group 1909, July 24-25. Six small faint epote on July 14, measured in two clusters. Only the preceding cluster is seen on July 25.Group 1910, July 25-Aug. 5. A regular spot, a. Two very small companions are seen near it on July 31.Group 1911, July 26-30. Four email spot« in a scattered stream on July 26. Two small regular epote, a and J, on July 27 and 28, b has disappeared by July 29.Group 1912, July 26-Aug. 5. Four small spots, three of which are measured together on July 26. The group has greatly increased by July 27, and by July 29, has

become a long stream of spots of which the first and last, a and b— both regular epote— are by far the largest. The smaller spots disappear or coalesce on thesucceeding days ; and on Aug. ï the group consiste of five spot«, a, o, d, e, and b, of which в and b have disappeared by Aug. 2. a remains alone by Aug. 4.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, ÔRHÉNWIÔH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 6Î «


GreenwichCivilTime.

1886.2iid-505

July 31

212-496

Aug. ï

213-232

M.

Aug. 2

214-584

Aug. 3

215-305

I.

.Igя

BP,H

EP,H

H,EP

EP,H

H, M

1M

1

1Я1о

ilfc

19081912019121912191261910191001910

191201912019120"191231912619100

191201912619120*19100191319131913

19120191219100191319-3191319140

1912019100

1S.9S

на|M8*9

îï«

0*9010*9020-2470-2 II0-1860-1720-3450-3500-313

0-9630-9450-9270-4090-3740-3250-2980-2760-469

0-9020-5420-5150-4540-5820-8390-8580-881

0-7590-6710-7820-6470-69207080-796

0-8780-8570-871

1m

gii1в шft

Рн

о

281-9263-3321*2330-6

348-7358-9206-6200-4199-6

277-9261-9254-1298-3

299-9306-3304*8308-4225-4

280-3291-9291-8295-0237-0100-5

99-9100-5

286-7286-424ГЗ105-3104-0105-0

83*8

240-3286-1250-9

HELIOORAPHIO

aí

1*о

358-4357-3303*0299-9295'9293-9302-7300-9299-8

355-6350-5346-33027300-4296-5295-3293-6300-7

3357302-4300-6296*2300-9215-1213-0210-5

302-1294-7300-7214-4210-8

209-7200-0

298-9

302-7

3OI-O

•§

ïÃ

о

+ I3-3- 3'5+ 16-9+ 16-5+ 16-4+ 157— I2-I

— 13-3— 1Г2

+ 9'2

- 5-6— 12-3+ 16-6+ 16-3+ 16-8+ 154+ 15-6-13-6

+ 11-9+ 16-8+ 16-2+ 16-5-I3-3- 5'5- 5'3- 6-3

+ 16-6+ 15-5-134

- S'!- 6-2

+ 8-6

-22-4+ 17-0-I3-3

SPOTS.

II«!it•в"J**•4

H21

2

370

230

(70)

18оо0

о15

(33)

зб2

6

Hо0

0

(58)

13о

20

О

0

О

3(зб)

10

i8

«M «M

Ht)ni gp -iilЧ*л«11•ч

90I2O

27I633

3126

3(418)

105Ч3523i i

113(302)

>341374

1148

nn

(Зб5)

749

8i55

Ч22

(210)

44i i 8

FACUL.-B.

1о•S'KláL. Ml-s8Ï•5

S761 5 is/

(727)

237133152

(522)

88

)[ I 7 I C

(259)

69n/(69)

58282/1380

GreenwichCivilTime.

1886.2i5d >305

Aug. 4

216-426

Aug. s

217-589

Aug. 6

218-405

Aug. 7

fК

1w

H, M

H, SP

H,EP

SP,BP

1

1

íío*J*

19131913»913191419140191419141914

19120191001913019*319131913191401914

19130i9!319131913

191301913191319131913

|

.9V

J*ОЯ

1.8 "ãалJ-s

0-5100-5280*5590*5820-6490-6790-6940-6970-6990-8780-954

0-9540-9630-2810-3000*2920*3480*4590*479

0-9860-8970-2080-2350-2140-2130-8540-919

0-9500-3210-2860*2910*2890*2640*826

i00

g

J

"S

10l -á

•g-ч£o

111-4107-8iio-ino* 5

85*284*485*982*184-382*5

103*6

285*6254*1132-6128-5125-4124-9

84-582-6

284-9270-1200-6

1737186-6I7I-8

89-2

83-0

274-0

232-7

226-4222'9

216-9

216-38f2

HBLIOOBAPHIO

»'SIЛ

о

215*1

2134211*8

iio*4202*92ОО*б

199-4199-2199-0181-7172-9

302-1300-7216-8215-1215-02 I 2 - I

20ГЗ

2OO-I

294-7276-9

2174

2147214*6

2 I I - 5

154-6146*0

2 74' 5217-32144213-9212-5211-5146*6

4

л0

- 5-2- 3'9_ 5-8- 6*6+ 7-8+ 8-4+ 7-3+ 10*0

+ 8-5

— 11*0

+ i6*8-134- 4-8- 47- 37- 5'5+ 8-1+ 8*9

+ I5-7+ 2-9- S'0— 7'1

- 5'9- 5-8+ 4-0•f 8*9

+ 5-8- 5-0

— 6*0

- 7-0- 5'9+ 8*4

SPOTS.

Il«1pj,".

Ч•ë ~•ч

70

3оо

12

О

0

о

(50)

о»3

5ïо42

О

(25)

'9оо7

(2б)

1бооо3

(•9)

II

SiOi

ífc•M31 .

sll•4

338

1312

2

222

2

2

(258)

52

97527S

2486

(250

766

2836

(146)

9899

1636

(-68)

FACUL.-B.

в-l _•ч "R8(5|<8d•9

23145

(646)

454C1670

(621)

171212

72125

(580)

197

201

(398)

The Groupe of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, *, y, f, c, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faoulte are expressed in millionths of the Sun's visible Hemisphere.

Aug. 3. Photograph faint. Faoulro ill-defined.Group 1913, Aug. 2-12. Three small faint spots on Aug. » ; six, measured in three clusters, on Aug. 3. The group has increased in site by Aug. 4, and by Aug. S bas

become a stream of spots, of which the preceding spot, a, is the largest. The smaller spots have all disappeared by Aug. 8, leaving a alone ; a has changed itsshape by Aug. 8, and by Aug. 9 a considerable portion has bcoome detached and forms a separate spot, b, b has greatly diminished in size by Aug. 10, and hasdisappeared by Aug. n ; whilst a has increased in size.

Group 1914, Aug. 3-5. A small regular spot, a. On Aug. 4 four very small spots are seen near it. On Aug. 5 one very small spot is seen near it.

MEASURES OF POSITIONS AND ABBAS OF SPOTS AND FACULTE UPON THE SUN'S DISK


GreenwichCivilTime.

1886.2i9d'4i4

Aug. 8

220-576

Aug. 9

221-364

I.

Aug. IQ

222-400

Aug. 1 1

223-407

Aug. 12

224-445

Aug. 13

225-228M

Aug. 14

226-335

Aug. 15

с

«Jя

SP,H

ЕР,Н

Н,М

EP,SP

Н,ЕР

8Р,ЕР

Н,ЕР

ВР,8Р

1

1

1

íАочÓ&ъ

1913^

1913^1913«

1913^1913«

1913»1915«

1913«1915^1915«

1915^1915«

915^

ï

1915«

§

.5|

II's

«я «sãIм

1*8Q

0-5040-954

0-7140-7070-852

0-9400-8310-8240-8120-987

0-7810-9290-9600-943

0-9120-989O'SOO0-869

0-9680-6320732

О-боб0-893

0-9580-8650-7860-420

i09

§

f4

§ ,s'•З'Й•g -Я»H

o

249-2103-1

258-6255-5107-1

275-6261-0259-1

91-097-2

275-5261-6ion107-4

276-1263-5104-2104-2

277-1109-9108-9

115-3121-2

2ÓI-2

2474

276-2

I30-6

HELIOOBAPHIO

e

1g"3

о

217-2

n8'5

218-2217-1118-0

233-8

217-5109-2

83-7

20Г2

216-7

77-58г6

202'5

216-885-1

78-0

198-8

86-178-4

78-755-8

16971534149-7

78-8

1í

о

- 47— io'4

- 3'5- 5'5— 10-9

+ 7'5- 3-8

+ З'о- 6-0

+ 8-4- уз- 8-6— i4'o

+ 8-3- 54

- 8-9

+ 8-6- 7-0- 8-9

- 94

- 64-15-9+ 9'°- 9'5

SPOTS.

Il«1й-'

§ UтС-кs lá•3

17

(17)

оЯ

(8)

0

13

(13)

Ч25

(39)

о3

25(28)

322

(25)

12

(12)

12

(12)

II«'SO-3-

^t.

**•£§la•3

96

(96)

2549

(74)

972

(80

72128

(200)

9317

126(236)

9112

(121)

I I I

( I I I )

83(83)

FACULTE.

0,

<§

1$ia•sf|Ä•5

125("5)

138038)

49f 119

92238

(498)

1163050379C154

(954)

159322/2Ó1C

33OC(I072)

223

I I7C(34°)

107(107)

546o75

(189)

GreenwichCivilTime.

1886.227d>393

Aug. 1 6

228-466

Aug. 17

229-411

Aug. 1 8

230-240

I.

Aug. 19

231-406

Aug. 20

232434

Aug. 2 1

13я

SP,EP

Н,ЕР

Н,ЕР

Н,М

EP,SP

SP, ЕР

1fcl

i(3

1а(5

u

•alSé

19161915«

1915»

1915«

1915«

1915^1917

i.ag g0*1

1«s|Seeя*

0-8550-2980-9130-967

0-9650-8590-3280-9110-946

0-4720-8050-8790-898

0-8790-6 12

0-7570-8800-8630-8780-8780-9650-925

0-9460-8810-8640-8250-7880-7280-7280-862

0-9520-9010-972

"i09

|•Й

13чí*h

о

283-9163-8юб'б

8о'5

279-8281-3210-6

78-698-6

234-577-5

101-585-1

272-0244-2102-7126-0108-9

46-3917

126*278-2

266-9258-7248-5268-1252-1

95-289-780-6

262-9253-6737

HELIOQBAPHIO

«i

1

§

^

о

142-8

78-82O'4

7-6

145-1129-2

79'23'2

3597

79-8

357-1352-8

107-679'9

358-3353-1349'5348-7344-8339-2337-6

ЮГ2

90-8

86-686-079-9

344-3343-8330-6

88-278-7

299-4

I'•§

^0

+ 154- 9-8— I2-I

+ IO-9

+ 11-3+ 13-2- 9-6+ 13-1- 5-8

- 9-6+ 14-1- 6-7+ 74

+ S'l- 9'7— 5"°— 27-0-12-5+ 41-2+ 1-9-32-2+ I3-5

- 0-7- 6-6— 14-6+ 2-4- 9-6+ i-i+ 5-0+ II-6

- 4-6-II-5+ 174

SPOTS.

е ё43 ч«

•"'SPî Sд<_

PU.

ï"?к Зй•3

0

13

Оз)

12

(12)

13

Оз)

8

(8)

2

О

(2)

(о)

IIsioit$i

TtfPO•4

10

79

(89)

69

(69)

55

(55)

38

(38)

176

Оз)

(o)

F-iCUL-B.

f0

•9"ia

M

l-s-11*•Ч

23IC

IO!

140(472)109

8o

488253

(930)

261151176(588)196

49604523

21731

114(73S)

96371

825994e

49122

(873)

218284

217

(719)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, ï, p, f, a, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spote and Faculœ are expressed in millionths of the Sun's visible Hemisphere.

Group 191$, Aug. 11-30. A regular spot, a, with a small companion, b, on Aug. n and 13.Group 1916, Aug. 1 6. Two very small spots, measured together.Group 1917, Aug. 20. One very small spot.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. es


GreenwichCivil

Time.

1886.233d498

Aug. 22

234-502

Aug. 23

*35494Aug. 24

236-228т1.

Aug. 25

237-389

I.

Aug. 26

z38-575

Aug. 27

*3944

Aug. 28

240-641

Aug. 29

241-466

Aug. 30

öSE

Я

EP,H

SP,H

EP,SP

H,EP

H,EP

BP,8P

8P,H

EP,SP

H,SP

3h$&gfО

douи

19180

19180

191801918

1919^19191919^

1919«1919^

1919a

19196

19190

1920019206

1•S.aк

kJT

MJ oЙ

0-9700-9060-931

0-9350-8340-795

0-841

0-9060-7480-776

0-7960-6880-7230-733

0-9010-5260-586

0-9750-90404530-5060-914

0-4590-769

0-9370-956

B

§M

1fl

I

:||fc

0

255-972-0

1 10-9

108-0117-7

72-1

111-9

280-2116-1116-8

282-2125-6127-2125-8

281-5143-0140-1

284-2270-6162-8155-2

98-2

196-9103-4

79-880-0

HELIOGRAPHIO

.

1ь>

о

76-82974296-1

283-5298-8296-8

283-2

3Z-5283-228I-I

47275-8273-9272-5

0-8276-5272-4

' З'1

349'5276-7271-8219-9

276-7220-1

1874183-9

4

â0

-II-8+ 19-2-16-5

— 14-0— 18'4+ 18-4

-14-1

+ 12-3-14-1-15-6

+ 14-0-17-8-20-3-19-9

+ 134-18-1— 2O-2

+ 154+ 3'6

-18-4— 20-3

- 4'5

— 18-9

- 5-5

+ I2-O

+ I I - 7

SPOTS.

33«1ч*"ъ•4

(о)

о

(о)

0

(о)

оо

(о)

17о9

(26)

Iо

(0

2

О

(2)

0

(о)

712

(' 9)

,33

I!Es,jll

(о)

6

(б)6

(б)

2

2

(4)

864

75('65)

6оS3

(»3)

3517

(50

12

(«)

37

(93)

FAODL-Ж.

1

*~M

|l

Si•ч

251

340go

(68 1)

1960103230

(5*9)

1900(190)

42

f J9 I C

(*зз)238

(238)

107

(107)

"579

222

(416)

170

l 285C

(««S)

Greenwich

Civil

Time.

1886.2420-405

Aug. 31

243441

Sept. ï

244-431

I.

Sept. 2

245'337

I.

Sept. 3

246-465

Sept. 4

247-507

.E

Я

EP.SP

EP,H

H,EP

H,BP

HP.SP

H,HP

3h

!ïA

О

ч*0»Ь

1920019206

1920019206

192001920192019206

19200192019206192!

192001920192061921

1920019201920

1s.ggII1JÍfi

0-8020-8540-8310-877

0-9320-8840-7890-6770-744

0-9700-9650-8930-8770-4870-5330-5370-5770-9010-983

0-9690-9480-9530-2890-3410-4000-896

0-091O-122

0-174

0756

0-254

0-244

0-204

f&

g

4»

I

lsIIp*

o'

290-0241-8

80-380-7

246-1283-3238-9

80-080-9

293-0284-1253-62447

77-678-379'580-084-5

101-5

256-2280-024747°'372-876-5

103-2

13-553-260-4

108-9

293-8303-5293-2

HELIOQKAPHIC

tM

о

298-4298*0188-5'834

295-92944277-0188-8183-2

297-1294'5279-2274-9189-6186-4186-1183-3153-9141-0

280-0278-7274-7190-4187-1183-2144-8

190-5186-0182-845-5

191-7190-1189-0

•ssâ

о

+ 20-3

— 19-5+ I2-I

+ II-6

-I9-2

+ I 5 - I— 19-0

+ I2-I

+ II-6

+ 24-0

+ >54— 114

-18-1+ I2-3+ 12-3+ 1Г7+ 1I-6+ 8-1- 9-8

-ПЧ+ 11-7— 18-9+ 11-5+ 12-6

4-12-0

- 8-5

+ I2-3

+ 11-3+ 12-0

- 9'2

+ 12-8

+ 117

SPOTS.

Ilg!A U

-ïi1

IO

13(23)

IO

29(39)

6оо

23

(29)

90

21

0

(30)

20

О

IO

о(30)

i6о0

33Ht!

О4—'

Bi„*.jlî

6783

(150)

106198

(304)

7262

I6S

(245)

833148

(253)

12920

90

«3(»S»)

122

132O

FACULTE.

o.

О

i£

*î2l•5

15654

> JOOC

(510)92

253344

> 222C

(9'0

144«3874

122

130

225

(833)

• 7 521

178

202/

(476)

i6oc(160)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculte relative to the Spots with which they are associated are indicated by the letters n, t,p,f, o, denotingrespectively north, south, preceding, following, concentric.


Aug. 24, Photograph faint. Faculto ill-defined. Aug. 27. Photograph over-exposed. Spots and Faculte ill-defined.Aug. 28. Spots and Faoulœ ill-defined.Group 1918, Aug. 23-25. A very small spot, a, followed on Aug. 25 by a second.Group 1919, Aug. 26-29. Two spots, a and b, with a very small spot between them on Aug. 26. b has divided into two spots which are still measured together by

Aug. 28, and hoe disappeared by Aug. 29.Group 1920, Aug. зо-Sept, 10. Two spots, a and b. They tend to separate in longitude and some very small spots appear between them, b diminishes rapidly after

Sept. 3, and has disappeared by Sept. 7. a suffers daily changes of shape and size from Sept. 4-Sept. 8. On Sept. 8 it is a regular spot. Several portions whichhave become detached from it form distinct spots in its immediate neighbourhood on Sept. 5 and the succeeding days, but all have disappeared by Sept. 10.

Group 1921, Sept. 3-4. A small spot.

в4 MEASUBES OF POSITIONS AND ABBAS OF SPOTS AND FAQUIR UPON тнв SUN'S DISK


GreenwichCivilTime.

1886.247^507

Sept. 5

248-440

Sept. 6

249496

Sept. 7

250-398

Sept. 8

251-468

Sept. 9

,;.

Mea

sure

r!

H, EP

EP, H

H, EP

EP, H

EP, H

1

1

1

t0 _

o<a

192019206

19201920192001920192019206

192001920192019201922019226

1920019201922019226

1920019201922619230

i.aг -

ÎJ|asi|î

0-1500-124

0-8390-4810-4570-4520-4270-4180-3070-8570-953

0-9480-6620-6340-6320-6220-5060-4770-8730-944

0-8060-7840-6640-6 1 60-877

0-8350-9230-9120-7720-9910-7440-8150-988

i1лî

1H

о

ЗОЗ'О315-6

2бо-8282-5280-5285'!291 Ч285-1287-3Ю5'699'3

263-8282-3285-3280-2

283'!

232-1

229'797'8

105-8

28о-8

279'5243'2

240-8109-9

278-1280-6278-8248-7

78-51174Ю9'6

96-2

HELIOOBAPHIC

-

tЛ

о

185-4183-1

221'5

194-2192-8192*1189-9189-9183-0lOÇ'I

94-6

222-3193-2190-9191-0190-1175-6173-491-983-5

193-9191-8176-9172-9

82-0

182-7193-8192-1172742-382-874-345-5

Lat

itud

e.

0

+ I I -9+ 12-3

- 3-6+ 12-4+ 1ГЗ+ 13-3+ 15-6+ 12-9+ 12-2

- 9'3- 6-6

— 3'5+ I3-6

+ I5-3+ I2-I

+ 13-8

-II-4— in- 3'2

-12-3

+ I3'°+ 12-0

-II-6

-II-4

-I3-5

+ 10-7

+ I2-6

+ 1ГО

-II-4

+ 12-3— 14-8-11-4- S'0

SPOTS.

>2 «2<(ro

Sig*tnjlf

0

3(19)

оо

250

о0

(25)

22

О

I

О

о3

(26)

2О

IO

О

О

(30)

29

ооо

(^9)

IIH-o

ol

St]îî

2

37(194)

Î7

1543

1310

(192)

1751238489

(246)

120689

25

(222)

117

26

832

('S3)

FACULTE.

f

11

*îli

(о)

102

56177

(335)

130

146277

(553)

)> 2130

187(400)

251{ i t f t fl 34ÖC

I02C192054

220289

(1456)

GreenwichCivil .Tune.

1886.252d'398

I.

Sept. ю

253-503

Sept. u

254-339

Sept. 12

255-396

Sept. 13

.л

Меа

впте

п

H, EP

H, EP

H, EP

EP, H

1

31t

CS11192001924019240192461925192301923

192401924019240192519230

19240192401924019246192301923

192419241924192419241924192519251923«19261926

íSi.3

IIí.S'i9м

.9*0Q

0*9030-9840-5920-6190-77607160-9280-9640-929

0-4070-4380-4660-5280-8030-830

0-8480-3020-315

0-3450*4800-6730-7710772

0-8900-315

0-3570-3160-3850-3360-3810-3550-1350-1910-4800-66707010-916

ím

1o.

1

Posi

tion

Axi

s.

о

254-128 г8Il6'O

114-9113-0

97-679-07-9-898-5

131-2128-0127-0102-4

79-2ЮГ2

2547I57-5I50-9I47-6134-2

78-9787

IO2'4

256-0I77-3I72-I169-1167-8lOS'O160-9I59'5148-0ЧЗ-i

76-8104-4101-3

75-5

HELIOOBAPIIIC

15

ís>jо

175-3194-0

8o-878-866-468-344-537'946-2

80-878476-767-945-044'2

ЧЗЧ8ro78-876-967-145-336-9387

134-572-970-970-369-068766-566-569-767-245'233-630-5

6-7

Lat

itu

de.

о

— iro4-12-8- 9-0

-12-8

- 0-4+ 12-8+ 117— 5-1

- 8-6- 8-8- 9-6— °'3+ I3-0- 5-2

- 8-9- 9-0— 8-8- 9-8-12-8

+ I2-8

+ i3'3- 4-8

- 8-9— i ri-134— 10-9-14-9-11-7-13-9— 12-2

+ 0-7- г6+ I2-6

_ 4-0

- 27+ l6'2

SPOTS.

II

ilSijil

13о0

о0

32

о

(45)

4о0о

34

(38)

о30о

33о

(зб)

4о2

О

0

Iо0

0

22

6

О

(35)

Il1!hte

lu

14553

IO

'7242

13

(435)

Ч1312

4239

(282)

162420

9221

7

(297)

39

12

8897

i i19

18427'9

(358)

FACULJE.

§

&^Ц43

í*

250525«/

)j 90C

1í

529(1822)

333/247(580)116

1380бдс

169(492)

102

i78(340)

The Groups of Sjxrts are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculœ relative to the Spot» with which -they are associated are indicated by the letters n, t, p, f, a, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculte are expressed in millionth^ of the Sun's visible Hemisphere.

Group 1922, Sept. 7-9. Two small spots, a and b. Only Ь is seen on Sept. 9.Group 1923, Sept. 9-21. A large regular spot, a, which has divided into two portions, b and a, by Sept. 18. Several very small spots are seen from time to time following

the principal spot.Group 1924, Sept. 10-15. Thie group extends over a large area, in which small spots appear and disappear in a very irregular manner. On Sept. ю the group consists

of two widely separated clusters, a and b, b is not seen on Sept. n, and is represented only by a single spot on Sept. 12. But by Sept. 13 the whole of thepreceding cluster, a, has disappeared, and a number of email spots are seen irregularly distributed over the greater part of the area, which on Sept. ю and 12 layvacant, between a and Ъ. On Sept. 14 and 15 the group forms three compact clusters of very small spots ; but the clusters on Sept. 15 do not correspond preciselyto those seen on Sept. 14.

Group 1925, Sept. 10-15. A small spot on Sept. ю and n. No spot is seen on Sept. 12, but on Sept. 13 the group is seen again as a number of very small spots arrangedin two clusters. The group forms an irregular stream of very small spot« on Sept. 15.

Group 1926, Sept. 13-20. A number of small spots following one another in a straggling stream. The first spot, a, is the largest and beet defined, but it Buffer« continualchange of shape and area, alternately coalescing with email epote near it, and having portions separated from it.

ON PHOTOGRAPHS TAKEN AT тнв KOYAL OBSBBVATOBY, GBBJSNWIOH, IN INDIA, AND IN MAURITIUS, IN -гни YHAB 1886.


GreenwichCivil

Time.

1886

I.

Sept. 14

257-293

I.

Sept. 15

258-585

Sept. 1 6

В

gЯ

H,BP

H,HP

Н,ВР

.8

Ã1с£

1d«!

192419241924192519251923«1923192719261926

19241924192419251925192519251923»192319231926«192619261926192619261926

1923a

19231926«19261926

1.а3

•Я и

9мJ 'S

0-9250-3570-3690-3360-1620-164о'ЗЗЗ0-4710-3800-5180-5750-8410-926

0-9880-5200-5090-4850-4250-4260-3900-380o-цб0-193О-2О2

0-287

0-288

0-307

0-3I3

0-345

0-3590-342

0-829

0-25I

0-163

0-2390-2250-228

0-956

iM

1•Я

•S,1||H

0

256-1206-4200-7199-7244-52OO-2

72-8

77-212 1-2

IH'4

I05-I

75-886-5

258-4234-6230-6230-3257-2

248-8251-8

33'S52-262-2

138-6132-7130-7124-5129-9126-9119-7

88-5

295-I309-2208-9201-4187-3104-9

HEUOQBAPHIO

•оS

sJ

о

129773'571-970-8/0-766-445-336-3

35430-6

6-5356-2

128-074-272-371-073-172-770-069-845-039-738-237-836-535-333-8ЗЗ'З32-0SI'S

352-6

45-139-238-336-4

334321-1

•S'•g»s

о

- 9'9-II-5-13-0— II -2

+ 0-6- 1-6+ I2-4+ I2-4

-4-6- 4-6- 2-6

+ 15-8+ б-о

— 10-2

— iro— 12-2

-II-3

+ 1-2

- 0-4

— o-i+ I2-8+ 13-9+ 12-5- 54

-S- 3-2- 5-8- 5'5- 2-8+ 54

- 4'9- 4'9

— I2'O

BPOTS.

Il«J-0

11.!*£s SQ•3

7о6I0

23О

о12

7

(56)

4о0

3i40

24о0

7о5о3о4

(55)

24о6о0

(30)

IIH-TS

о -а

St!|íg g Q•5

4121

6

I I

I 66

6

2

4122

(329)

'1

à132O

2

1572

I I

392

9i72

18

(345)

14820

27IIl6

(222)

PAOULJK.

g.

О•Я "КЦ•Чfi1— •

•З

188

300379

(867)

> 59

245(404)

155(155)

GreenwichCivüTime.

1886.2594-420

Sept. 17

260-478

Sept. 1 8

261-117

I.

Sept. 19

в

3я

H,PH

H,BP

BP,M

111g.

*!0-юи

1923«1926»192619261926

19236192301926«192619261926

19236I923C1923192319231926«1926192619261926

i.g.SJ a•Э

<fi «

S ãgooütsО

0-9470-879o-8oi0-4180-3680-3480-3030-3130-8920-983

0-9280-9090-6150-6020-5610-5370-4940-4900-8020-9090-926

0-9610-9580-7670-7240-7200-7000-6850-683о'ббо0-6290-632о-6о4о-6о70-9590-851o-gii0-8780-8850-922

i£S

"аs

J.3«•<о.

0

261-4254-3263-8284-82334227-1229-7221-5107-8

95-8

255-3265-6281-5284-2248-4246-5246-6242-7113-298-075-0

267-0254-8256-9281-0283-6280-6281-9283-6252-825342514252-6249-7176-899-4

117-286-474-862-0

HELIOGRAPHIO

•aо•&§Á

0

90-6

79773-245-037-835433-932-6

320-3302-0

71-544'743-638;2

33732-6

317-5302-4298-1

71769*146-644-844'342-841-64J '337435-335-1334ЗЗ'о

350-5301-1298-1296-5295-3290-6

4>1'•i

0

- 5-8— 10-2

- 0-7

+ I2-6

- 5'9- 6-8

-12-4

- 4'4

-10-7

— ГО

+ 127

+ 14-2- 5-8- 6-2

- 5-0- 6-6

- 4'2

- 0-9-12-3

- S'3+ 12-9+ H7+ 12-5+ 13-3-'5-8- 4-7- 5-9- 4-6- 6-3-65-9

— 2П

+ 6-6

+ i6-8+ 28-5

SPOTS.

Iltel

Si«1ÎSlft•3

19Ч40

о

(37)

23

78о3о

(4i)

Ч9ооо

150

0

II0

(бо)

IISaEt**£к SO

•ч

142

6l452064

(332)

122

24

573718IO

(268)

11749

2

35

8o3i

5°2

(S«)

FAOUL.fi.

1О•a "í;lá^181— •

•ч

73288Ю7

Ч«112

(7«б)

223

»59

109'59

98(748)

235239214

> 3S9C

124

3559о23бб67

(1772)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third oolumn it is to be understood that there is a Facmlaunaccompanied by a Spot. Tho positions of Faoulio relative to the Spots with which they are associated aro indicated by the letters n, t, p, f, e, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spot« and Faculte are expressed in millionths of the Sun's visible Hemisphere.

Group 1937, Sept. 14. À very small spot.

GEBBNWIOH OBSBIIVATIONS, 5 I

60 MBAÖUBBS OF POSITIONS AND AREAS OF SPOTS AND FAQUIR UPON THE SUN'S DISK


GreenwichCivilTune.

1886.26zd '3I5

I.

Sept. zo

263-442

Sept. 2 1

264-509

Sept. z z

265-328

I.

Sept. 23

266-303тл.

Sept. 24

267-123rx.

Sept. 25

268-106

I.

в

Iя

EP, M

EP, H

H, M

EP,M

EP,H

H,BP

H,EP

&

í•оã

I0

ô w

192301923/1192319231926«1926

1923^

1928.1928

19281928

1928

19281928

|-S

q mU;g

|«

g 'g

.3*0 ,D '

0-9170-9650-8830-8790-8570-8450-8320-7900-9390-9500-9390-988

0-9260-969

0-0950-158

0-7810-7160-8970-8990-1310-049

0-8970-8800-956

0-9370-5220-883

0-8790-7100-659

"iM

g«G

V

ï1.2•й иg-1

Рч

0

260-22O2-I

283-1

280-6

280-7

282-2

2587

258-4

184-1

136-4

I14-O

95-1

261-5

280-9

62-7

77-3

274-2

288-7

283-6

264-9

2924

3094

2754

IOI-7

98-5

280-4

277-9

97-8

251-9277-5277-2

НилоавАРию

1

м

о

474z6'544'944441-840-4

ЗЗ'о350-6283-7276-82Ó2-O

34-144-1

308-1304-6

354-2348-0

7-06-0

309-6304-8

354-1229-82I8-I

349-2310-5218-0

324-63 I J ' 5307-4

õ

1J

О

- 6-1

-58-7+ '4'9+ 12-7+ 12-8

+ 14-1- 54- 4'7— 62-4—40-0-19-7- 3'9

- 5-1+ 12-3

+ 9'5+ 8-9

+ 77+ 18-2+ I5-3

+ 9-8+ 8-8

+ 7'9- 6-9- 6-0

+ I2-I

+ 10-0

- 3-6

-12-34-10-2

+ IO-O

BPOTS.

kl N

<it!« ã§1«H00

sie•9*

IO26oo

12o

(48)6(6)0o

(o)

o. o(o)

(o)

o

(o)

oo

^ »H

н -ао!и«

«MW

g g Q•3

44125

5i88oI Z

(284)

90(90)

zoIZ

(32)

99

(18)

(o)

5

(5)

2

3

PACULJB.

|0-x.

Sosl*^^(

•5

18527

_5 6

J 4 5 I C

3o703842

0355)

17517IC

(346)

(о)

255in33399

(798)

1222452

(I98)

122

44(166)

74

Greenwich

OivüTime.

1886.z68d-lo6

j

Sept. 26

269-104

I.

Sept. 27

270-461Sept. 28

271-565

Sept. 29

272-170

I.

Sept. 30

273453

Oct. ï

274-415

Oct. 2

275-191

I.

.J2

vя

H, EP

H, EP

H, EP

H, HP

H, EP

H, BP

EP, M

&fe1

'Sa

tO

Чdwfc

19281929

19281928

193001930/1

1930«1930^

1930«1930

1

K•s»-<Sf

g "g1%f o0

0-6320-717

0-943

0-9580-7860-8190-7900-8810-956

0-9330-989

0-9370-9560-9780-870

0-8180-882

0-6700-682

0-9280-8630-902-

iW

a*v

0

:l|g-ч

o276-4103-0

80-1

254-4257-6276-5276-7

78-9ioz'4

99'9107-1

270*2108-9109-5

87-0

1134II 2-6

120-7

II97

2224

I78-4

163-3

HELIOOIIAPHIO

•в

íbgЛ

0

3054•Ui-7

323-7303-I308-I

305-3190-5

181-6

'52-9141-5

281-8142-6137-5151-8

I44-71377

146-3145-1

226-7170-2146-5

Щ

1Â

o

+ 94- 4'4+ 1ГО

-12-7- 54+ 9"2

+ 9'5+ 13-0- 9-8

- 6-7— 15-7

+ 2-5-15-8-17-4+ 5'9

— 14-9-16-3

-47— 14-6

-39-6-52-8-53-9

SPOTS.

II<jrfl

g!чai

j in

43

(7)

o0

(o)

(o)

(o)

85

(13)

4o

(4)

60

(6)

IIH "2O-2-Мч»

44

§1e•<

i813

(36)

52

(7)

(o)

(o)

2638

(64)

289

(37)

369

(45)

FACULTE.

P.

a-•plà'si•"•art Йgi

278(352)

146160

)f '43e

347 .259

(1055)

(o)

5347

(zoo)

77

r '99e

66(342)

(o)

(o)

41

7576

The Groupe of Spots are numbered in the order of their appearance. When, there is no number in the third column it ia to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculse relative to the Spots with which they are associated are indicated by the letters n, я, j/. /, a, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculœ are expressed in millionths of the Sun's visible Hemisphere.

Sept. 21 and 22. Photograph very faint. Facula ill-defined. " Sept. 24. Photograph very faint. Limb hardly visible. Faculté ill-defined.Sept. 28. Photograph over-exposed, Sept. 29. Photograph »lightly over-exposed. Faculto hard to see.Oct. ï and 2, Photograph faint. Faculas ill-defined.Group 1928, Sept. 22-27. Two small epote on Sept. 22 and 23. The group is not seen on Sept. 24. On Sept. 25 a single spot is seen. On Sept. 26 four very small epote

are seen, the last two being measured together. By Sept. 27 only two very small spots remain.Group 1929, Sept. 26. A small spot.Group 1930, Sept. 3o-0ct. 10. Two regular spots, a and b, on Sept. 30. Ъ has disappeared by Oct. 2. a moves rapidly forward in longitude until Oct. 5. It ii

followed by one or two small spots on each day from Oct. 2 to Oct. 6.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN тни YEAR 1886. 6 7

Measures of Positions and Areas of Spots and Faculto upon the Sun's Disk — continued.

GreenwichCivil

Time.

1886.275d'19I

I.

Oct. 3

276-541.

Oct. 4

277-481

Oct. 5

278-273

I.

Oct. 6

279'357

I.

Oct. 7

é

\Л

BP,M

Н,ЕР

Н,ВР

ВР,М

ВР,М

111А

0

<аМИ

193°«1930

i93oa

Я351930«1930

1931i93oa

19301932»193219321932

1930«1932«

|

.9èIs®>э

15II«

0-5460-5970-9180-9370-9500-9750-964

0-3900-4300-879

0-3900-3940-8690-933

0-9500-822

0-8070-4950-4680-4700-7280-7370-7510-7660-882

0-9520-9430-6100-5510-9050-9480-9710-982

"аш

4)

3о »•p

Рч

о

131-2128-7"44

83'994'8

102-2

7.0-1

•JÓ2-81 5-0-4

196-4189-099-895'S

252-9283-8278-5237'1217-22i4'3105-6107-01 06-0107*094'9

z8i'7254-5234-3113-095'974'9

юго105-1

НЕЫОвВАРШС

4s

à

о

474НЗ'б1 10-3102-6

ioi'497-096-7

147-9142-6•94-9

148-9146-1

83-374'2

2ОП

'«74i 84-9156-7148-9Н7'9'

87-286-785-484-370-6

190-5185-8148-4

87-053-545442-940-7

11J

0

-15-1— l6-2-I9-3+ 8-0- 2-5-10-3+ 20-9

-15-4-15-6*- 7-6

— 15-5— 16-4— 5-2- 2-8

-14-0+ 15-0+ 44- 9-8-15-8-16-7— 6-8- 8-1— 7-6- 8-7— 1-3

+ 13-1-12-4

- 7-1- 2-7+ 16-3— 9-1-13-5

SPOTS.

II

ацД-Í

'В*«H03

K «Q•3

17О

(17)

i3о

Оз)i6о

(i6)

2

22О

2

О

О

I

(27)

2412

(36)

II

Si •О *— '

u^

^ ^•S"

' 774

(90

817

(88)

7918

(97)

67868343

(108)

7945

(«24)

FAOÜbHÜ.

О,

Ü>

•S 'S

A«t•í

258o

151146

24(618)

126(126)

133119

(252)

4i1 02100

)ч п(лгf yuf'

J 83(422)

40587

5519331

7*(842)

GroenwioliCivu

Timo.

1886.28od'290

I.

Oct. 8

281-143

I.

Oct. 9

282-456Oct. ID

283-500

Oct. 1 1

284-158. I.

Oct. 12

285-507

Oct. 13

286-463

Oct. 14

сjя

ВР,М

ВР,М

Н,НР

Н,КР

ЕР,М

Н,ЕР

Н,ЕР

11тзаа

Î*tосе

I930O193201932

i93oot

19320

i93°#

19331933

1934

1

|

.9

1э*•§

К8 цIм

l'aQ

0-9240-7400-3870-4400-7950-8920-9600-955

0-9680-8980-7860-8430-2590-8670-9360-9290-949

0-962

o-i 190-124

0-1500-953

0-9000-.867

0-9770-9670-9510-9030-902

i£

•И

•a

l|P.

о

241-7242-8126-0

I3I-I994757

io8'996-7

245-4243-2205-3247-6152-3103-6I I 2 - S

97-1

77'9

252*2

3O-O

52-9

108-899-6

2594265-5

2534261*3269-0258-9243'3

mtUOORAPHIO

Ф

1

f3

о

167-3148-086'985-653-6

344334

152-81197Н7'5

87-035-628-326-521-7

148-2

59457-2

46*2343-2

99-296-0

99'397'995-686-983-3

пэsя

о

+ 23-2-15-2

— ю'9- s*+ 15-6-16-2- 4'5

-21-9— 20-8

-397-15-1

- 8-6-18-6- 4'3+ «34

-I5-3

+ 11-9+ 10-3

+ 3'i- 7'3

- 6-9- 0-9

-14-9- 6-9+ 0-9- 74— 21-0

SPOTS.

Il«iW"§1*й:ц•4 "

l6

3о

(19)

12О

(12)

0

(о)

О

о(о)

0

(о)

(о)

(о)

II

SIo~W t»p &

«íl•í "

65356

(106)

695

(74)

69(69)

918

(27)

4

(4)

(o)

(o)

РАСВЬЛа.

IÕ

J}"£

í?I*4ã•55449C

688492

43(490)

584721бос

55437*

(447)

(o)

(o)

43(43)

61i 82:(нз)

741168182

113(466)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it la to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, », p, /, c, denotingrespectively north, south, preceding, following, concentric.


Oct. 4. Photograph faint. Faoulro ill-defined. Oct. 5, 10, and n. Faculto ill-donned.Group 1931, Oct. 6. A very small spot.Group 1932, Oct. 6-9. A small spot, n, with a number of very small spots close to it on Oct. 6. л il seen alone on Oct. 7 and 9, but has one very email companion on

Oct. 8. a has increased in size by Oct. 7, but diminishes again on the succeeding days.Group 1933, Oct. ii. Three small spots, two of which are measured together.Group 1934, Oct. ï a. A very small spot.

s i «

68 MEASURES OP POSITIONS AND ABHAS OP SPOTS AND FAOUL^ UPON THE SUN'S DISK


GreenwichCivilTime.

1886.287d-i49

I.

Oct. 15

288-230

T

Oct. 16

289-130

I.

Oct. 17

290*286

I.

Oct. 1 8

291-253

I.

Oct. 19

292-376

I.

Oct. 20

.

1я

ВР,М

ВР,М

ВР,М

ЕР,М

ВР,М

ВР,М

3

11<£

О

1Í^

19351935

1935'9351935

1935193519351935

19351935

1935

1935

I.аê11

J-siдоз

l'aя /

о-дбз0-8880-868

0-5990-6 isо-88з

0-440-4190-444

0-9350-8310-3190-3200-3460-311

0-9580-9240-9160-9320-3700-3090-8950-937

0-9560-8910-4590-936

0-9490-8740-876

0-6430-849

1

1•н

•а1

il&

о

2594264*1250-6ii8'9115-2100-2

137-0130-9128-1

264-2285-1166-9156-9156-9151-5

286-0256-6248-1235-9213*0205*6

48-8107-0

261-9279-123I-5176-8

284-5288-9296-42457349'8

HELIOGBAPHIC

é

1

Я

о ,

87-676-671-9

3424340>4314-0

343-8341-8339-8

57-244'9

344-53414340-7340-1

474

Зб-535-1

345'3341-2273-5266-3

лк ч

732-6Г 24"О

342-1314-0

i8-o6-76-2

3424324-3

1

я

0

- 8-5- 2-6

-137-II-9— Ю'4- 6-2

— 12-2

— Ю'6— Ю'б

- 3-5+ 15-6-12-6

-II-6

— i3'o— ю'4

+ I6-9— 16*0-17-9— 29*0-12-3-10-7+ 39-0-13-8

- 6-0+ 10-6

-II-4-63-5

+ 154+ 19-1+ 257— iro+61-6

SPOTS.

IlЛ 9ИА

lit•9

2

8

(IO)

8о

13(21)

IO

о0

9('9)

62

(8)

0

(°)

о

(о)

II

Э|us!.

•îtч

2220

(42)

885

66(49)

IOIб7

40(154)

3021

(50

15

('S)

u

(ч)

FACCLJB.

t

°•Я 'SJá

""'S11•<

325615

22

(«5)

(о)

4368

(in)

139Ч7030

3419

(Зоб),

29

71

34(134)

бзlos

30

44(342)

GreenwichOivüTime.

1886.293d"i57

I.

Oct. 21

294-492

Oct. 22

295-I2I

I.

Oct. 23

296-507

Oct. 24

297-130

Oct. 25

298-46

I.

Oct. 26

299-135T'

Oct. 27

îк

EP, M

H,EP

BP, M

H,BP

EP,H

EP,M

H,EP

1

1

1

gСЭ

ОМ'A

1935

1936«

1936«19366

19366

1936«19366

1936«

1936

1S.95Jj

1«si5w

.a 'SQ

0-862

0-8570-8410-7650-9410*934

0-9340-971

0-9670-9550-9270-8970-8810-902

0-9930-9170-9430-929

0-905

0-933

0-8420-8840-783

07030-7610-9000-9480-983

0-5390-5660-921

.»

ï«B£

1

;||

PH

O

287-6283-4269-8249-8287-6295-0

255-6104-9

256-2

324-7252-2304-0263-0

231-374-0477106-2

76-9

75-2744

74-673-6

115-4

72-871-8

lOO'O76-5108-9

68-268-3

109-5

HELIOQKAPHIC

•SS

н

о

355-03547352-9342-6

6-34-6

345-0203-7

343-133б'9335-03314330-6325-1i8542234201-3201-0

1 86*4182-2

186-0i8ri195-9

1857180-9166-9158-9152-4

185-4183-649'S

!'•gло

+ i7;8

+ 44-11-7+ 18-4+ 25-2

-11-4-13-1

— 12-0

+ 53-3

-44+ 32-6- 37-31-5+ 16-5-47-3-134+ 4"o

+ 15-5+ 16-3

+ I5-5+ 16-7— 16-4

+ 154+ 16-8- 6-9

-177

+ 15-6+ I5-9— 19-8

SPOTS.

Il«1g!

!||•ч

(о)

о

(о)

о

(о)

8о

(8)

9о

(9)

7о

(7)

i lо

(и)

II

SI0-=-И.Р

jit•5

(о)

19(19)

62

(62)5533

(88)

5044

(94)

4°7

(47)

393

(42)

FAOUL.B.

10

•S ï»1(5

il•ч

173220

io8Si15

(273)

3860

413(799)

5103930322027

23803112

(1596)

1 ЯJ *

(238)

i 2 2 I C

91

)f I33C

5296124

(405)

181(181)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faoulae relative to the Spots with which they are associated are indicated by the letters n, e, p, /, о, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculao are expressed in millionths of the Sun's visible Hemisphere.

Group 1935, Oct. 15-22. A number of email spot« following each other in an irregular stream. The individual members of the group differ from day to day. Thegroup is not seen on Oct. 21, and only one spot appears on Oct. гг.

Group 1936, Oct. 23-29. Two spots, a and Ъ. Ь has broken up by Oct. 25 into a cluster of small spots which are, however, still measured as one. Only one of thesesmall spots remains by Oct. 26. Only a remains on Oct. 29. h is not seen on Oct. 27, but a is followed on that day by a very small spot.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, ш INDIA, AND IN MAURITIUS, IN THE YEAR 1886.


GreenwichCivil

Timo.

1886.30od*i45

I.

Oct. 28

301*469

Oct. 29

302-105I.

Oct. 30

303-180

I.

Oct. 3 1

304443

I.

Nov. ï

305-498

LÍOV. 2

306-397

Nov. 3

.

lAИР,Н

H,EP

H,EP

H,EP

H,EP

H,HP

H,BP

1V

I11o

•8 1oáffc

I936a19366

1937«

1937*19360

I937&

i.gЯ 9

'S

1

sii00

l"8

0-3520-4200-9410-9480-8620-942

0*9410-9250-189

0-968

0-9410-8930-975

0-9480-9190-8300-9570*9550*8520-8040-927

0*9330*9310-780

0-9680-88 1

00

"1œ

&1

,3

1

|l

o

56-657-6

174*1150-1114-4112-4

261-5261-5

4-0

262-3

182-398-1

115-4

281-3289-4251-2202-4191-2196-197-0

109-7

283-2253-6290-3

254-1288-5

НВЫООВАРНЮ

1•3

о

185-5i 8 i * 5190*1152-6147-6136-1

255-1252*6185-1

252*1

168-5100*9

89-5

222*3217*2204*I

I95-9I77-3I72-5

97-785-3

201*7

199-3182*9

194-7182*2

1t-3

0

+ 15-5+ 17-2-64*8— 52*6-i8*3-I9'3

"?4— 6-1+ I5-3

- 6-3

-65-5- S'*— 23-6

+ 12*1

+ T9"5— 13*0-59*2-65*7— 50*8

— 3'i-16-5

+ 13-8-137+ 18*3

-НЧ+ 18*1

SPOTS.

II

ai3-ag

jîî•3

70

(7)

оо4

(4)

0

(о)

(о)

(о)

(о)

(о)

II

jlo-a

ÏÎ.

:j|•5•29

8

(37)

65

(42)

47

(47)

(o)

(o)

(o)

(o)

РАСШЬЛа.

и.

1

•Ч!»»«Q

í!•^139

87122

87(435)

} 94С

(94)

98с

(98)

117274I2O

(Sn)

3343328997996

12922О

(lI27)

87520

юз(7ю)

100

128

(228)

GreenwichCivilTime.

l886.

307'1Ч23

Nov. 4

308*360

I.

Nov. 5

309439

1.

Nov. 6

310-209I.

Nov. 7

311-418

Nov. 8

312-312

I.

Nov. 9

313-166

T

'Nov. ID

.

js

H,EP

H,EP

H,BP

Н,ИР

H,BP

H,BP

H,BP

1M

1•§rt

!>áca

is3

láч•B,«

goo

J-s

0*9650*9230*9410*976

0-9010-8270-8470-8640-9170*923

0-9670-9060-9020-7690*8450-8420-875

0-9350*937

0*8430*9110-956

0-9440-8790*8460-846

0-9250-9080-837

iCO

11•S,!|lРч

o

289*197-7

108-3110-7

281-4246*0108*498*8

112*885*2

281*2

2834249*7

99'4115*8107-0

75-3

246-2118-4

259-1106-9103*1

255-1268-4252-8109-0

267-5256-3243-1

HELIOGBAPHIO

1

и

о

i82*441-039'532*4

1594147-2

39*636-231-8277

160-1149-6146*5

35'331-129423-9

136*6

54

и гоSS' 1 "343-1

112*0

i04*i98*6

347-5

98'995484*1

IJ

о

+ i9'5- 5-6-15*7-19*2

+ i i*9-17*4-13-4- 57-19-2+ 5'9

+ i i * 7+ 137-i 6*6- 4'9-19*4— 12-2

+ 4-6

— 20-8-25-0

- 7-3-13-8-II-4

-12-8+ 0-3-12-6

-14-1

— ri— iro-20-3

SPOTS.

Ilais*я*

и

îlî•ч

(о)

(о)

(о)

(о)

(о)

(о)

(°)

g f e•8«H

MIO1— '

8fc

ïï*2SÖ•ч

(o)

(o)

(o)

(o)

(o)

(o)

(o)

FÁ.OVLJB.

P,

1 _ло

là

и%

no703984

(303)

42269

7334

ю8114

(640)

9671

»7456

1274622

(592)

1 6664

(230)

2S8

48

84

(39°)

163167

33200

(563)181ISO

146(447)

The Groups of Spots are numbered in the order of their appearance. When there ia no number in the third column it is to be understood that there is a Faoul»unaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, t, p, f, в, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faouloo are expressed in millionth^ of the Sun's visible Hemisphere.

Nov. a. Photograph over-exposed. Nov. 3. Photograph over-exposed Paoulse ill-defined.Group 1937, Oct. ag-30. Two small spots, a and b, on Oct. 39. Only Ь is Been on Oot. 30.

/>

з/

г?

Zo

71

IPU

3~?

A/•397

/89-Г

ni-f 2.7

-7 SO

/ 7 /

70 MBASUKBS OF POSITIONS AND ABBAS OF SPOTS AND FAOUL^: UPON THE SUN'S DISK


GreenwichCivilTime.

1886.

34d'i48т

Nov. 1 1

3IS-332I.

NOV. 12

316-148

I.Nov. 13

317-205

I.

Nov. 14

318-280

I.

Nov. 1 5

319-191

I.

Nov. 1 6

320-462

Nov. 17

321-493Nov. 1 8

SI«

H,EP

H,EP

H,EP

H,BP

H,EP

H,BP

H, M

H,BP

1»

31f°ей1

Й

1938«

19380

1938«19386

1939

19391939

19391939

15

is

^?3

«С «ï

liI?Q

0-8890-9000783

0-5840-874

0-8760-4470-8980-939

0-3200-3380-8360-9470-972

0-913

0-9350-8900-9440-8940-8440-888

0-9620-7730-8740-7440-756

0-5320-542

0*960

"iœ

1«Я

FÏÏ

1

g„'

Ph

O

259-3

247-7

tIO'3

I2O-O136-4

283-3I32-Oi iro100-4

161-5!54'9

10-575-6957

195-0189-0

97-0256-5285-8265-4

96-2

189-697'2

116-7100-4

98-6

99'2104-3

286-1

HBLIOGBAPHIC

-

I!3о

8о'479-8

329-8

3317314-0

S3'!332-3291-0283*4

332-4329"9321-9267-3202'5

351-7344'3202'9

33727-121-3

2Ó2-I

338-82Ó2-I

255-2265-0263-8

263-9263-8

355-0

1í

о

— 8-0— 18'4-137

-14-5-37'3

+ 13-0-147-17-4- 8-8

-14-9-15-1+ 577+ I4-5- 4'9

-59-3-64-8— 5-0-11-9+ I5-3- 2-4- 4'3

—69-1- 4-0-21-8

- 6-0- 4-8

— 2-8- 5-6

+ 6-1

SPOTS.

Il«1Sï•н02

elo«ч

(о)

I

(I)2

(2)

О

О

(о)

о

(о)

оо

(о)

0

о(о)

(о)

II

310-2-W.P

•gœ^.ug л

^ *

(o)

7

(7)

9

(9)

53

(8)

ï

(O

32

(5)

66

(12)

(o)

ГАООЬЛЗ.

í5J •£*

láol

«1B -Í

•Ч

92

8772

(250

39(39)

46

121

02

(229)

66

Зб334

(436)

49149

1383548

219(638)

65i68,72

(305)

(о)

280(280)

Greenwich

Civil

Time.

1886.322d'l64

Ti.

Nov. 19

323-119

I.

Nov. 20

324-244т

Nov. г ï

325-282I.

Nov. 22

326-341

Nov. 23

327-251

I.

Nov. 24

328-352

I.

Nov. 2 5

J

. 1яH,EP

H,EP

H,EP

H,BP

H,BP

H,BP

H,EP

•

1ô11aeo

•H -P

1%ъ

íSi.gJáIs^?9

|«e|ibQ

0-9650-8770-909

0-9520-880

0-8470-8050-8290-904

0-8940-8020-919

0-9200-791

0-9210-9460-981

0-8820-8400-8590-920

0-9710-9510-8 1 60-9450-9250-930

iю|

*o

1' §á •

•- УH£

o

255-8251-6108-8

253-5225-3217-6110-773-9

109-8

282-8114-064-5

229-76r6

IOI -OII 8-2

77-7

280-9261-1117-377-3

211-5174-976-1

144-2101-589-2

HELIO&RAPHIO

à

I•Ua>S

о

346'7332-4209-7

3 3 I - I311-7303-1209-3205-3197-9

308-2195-2180-2

291-3182-8

151-8150-3i39'3

267-5262-6150-7I39-7

254-2177-4137-7I34-0124-81234

4•1а

о

-I3-I-15-0

-15-0-3<5'9—40-6-I5-3+ 44— 16-9

+ 12-3-17-8+ 24-1

-35*+ 23-2

- 9'5-25-9+ 12-4

+ 10-3- 6-7-22-4+ I2-3

-55-2-69-9+ 12-0

-49-2

— I О1 1+ 1-2

SPOTS.

II«1(4^

*1Ю*1p•5

(o)

(o)

(o)

(o)

(o)

(o)

(o)

II

§10-2.и«•gM

x

i

(о)

(о)

(о)

(о)

(о)

(о)

(о)

FACULTE.

P.

0н-Г*

là*iil<

10899

216(423)

2822

52

us8881

(386)

616197

(219)

2748

(75)

12424

108(256)

9°116176121

(503)

5341

75137133104

(543)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to be understood that there is a Faoulaunaccompanied by a Spot. The positions of Faculto relative to the Spots with which they are associated are indicated by the letters n, ï, p, f, o, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and Faculas are expressed in millionths of the Sun's visible Hemisphere.

Nov. 17. Photograph over-exposed. Spot» and Faculso ill-defined.Group 1938, Nov. 12-14. •*• wry small spot, a. A second, Ъ, is seen near it on Nov. 14.Group 1939, Nov. 15-17. A very small »pot on Nov. 15. Two very small spots on Nov. 16 and 17.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, ш INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 71


GreenwichCivilTimo.

1886.329"' 348

тI.

Nov. 26

330-171I.

Nov. 27

ÍÍ 1*34.6

I.Nov. 28

332'357т1.

Nov. 29

333429Nov. 30

334-320I.

Dec. ï

335-322

I.

Dec. 2

336-152

j

Dec. 3

337-150I.

Dec. 4

в

1

H,ÏÏP

Н,ЕР

Н,ЕР

Н,М

Н,ЕР

Н,ЕР

Н,НР

Н,ИР

1

1Д

1

!018 1^Ю

1940

i.9S

|§isi9ю•3<н

И

0-3040-8950-896

0-825

0-9530-8500-841

0-949

о-8950-830

0-9470-8920-943о-88о0-9330-952

0-8910-8400-942

0-8750-978

i&

4и •l -aÍ -5

u

246-4102-487-7

106-5

254-7273-5261-9

253-0

250-480-2

180-9174-5171-799-993-0

108-7

248-893-096-4

9 5 - 391-9

m-UOOUAl-Hlü

1

0

194-6115-81 15-0

1 13-6

21O-O1967

1954

1954

I74-6

57-3

IO2-I

89-2

78-I

38-6

31-0

28-7

I49-8

31-818-7

14-9357-9

•SP

о

- 5-8— 1O-6

+ 2-6

— I2'9

-4-3+ 34- 6-3

-15-8

-17-2+ 8-5

-704—61-9-68-3- 8-5- 2-7-17-6

-18-7- 2-3-5'9

-'4-6- 1-8

SPOTS.

II•*!"Sл l

ota?

ü-jS

ï

СО

(o)

(o)

(o)

(o)

(o)

(o)

(o)

(o)

II

31oias*is 8,si

111

•6

(6)

(o)

(o)

(o)

(o)

Co)

(o)

(o)

(o)

FACULTE.

о,g

láilil-з

4396(239)

96(96)

(о)

4920

99(168)

83(83)

4046

(86)

105404945

109138

(486)

544130

(125)

99136

(235)

GreenwichCivilTime.

1886.338Ü-I77

I.Dec. 5

339-240I.

Dec. 6

340-170I.

Dec. 7

341457Dec. 8

342-193M.

Dec. 9

343-502

Dec. io

344-399

M.Dec. ii

345485

Dec. 12

346-212

I.

Dec. 13

J5

Sя

Н,ИР

НР,Н

н,м

ЕР,М

Н,ЕР

ЕР,М

Н,ВР

1

!ïа,

О

603'Л

194.1019416

1941(*1941I94I&

1942i94irî

194119416

194219411941«194119410

|

.9è

1"^î-3il8 1Í00

l-ss

0-8990-856

0-963

0-913

0-8730-912

0-7640-7900-822

0-560o'èoi0-6380-6750-858

0-9730-4220-4910-4860-5580-5660-990

i<я

1•H

•tи

b

o

265-991-6

76-2

75-1

68-768-5

65-865-465-9

64*2

58-358-660-094-3

179-154-145747-650-852-394-0

HELIOQKAPHIC

1

O

125-834

305-2

3044

293-3288-1

293-2290-9287-6

294-6293-4290-8287-7

3I3-5295-7294-5294-1289-0288-0234-6

4s3

o

- 3-6— i*3

+ 13-3

+ 134

+ 18-1+ 19-3

+ 177+ 18-7+ 19-2

+ 134+ 177+ 18-7+ 19-0— 4-1

-707+ 134+ 19-1+ 18-2+ 19-8+ 194- 4'1

SPOTS.

Il•n

К g

3}*O -A

s1£4"°

(o)

(o)

(o)

(o)

(o)

о0

(о)

оо3

. (3)

i40

9

(H)

30

30

13

(«9)

IIS"e

Ist-g °V

§lá

(о)

(о)

(о)

(о)

(о)

12i8

(30)

28i l47

(86)

2028

5

(104)

154

12

351

(85)

FACUL.iE.

во

M||

i1

12882

(210)

(о)

(о)

70

(70)

29I

(290

i IOOC

(too)

]V 2190) (219)

229(229)

118

843(961)

The Groups of Spots are numbered in the order of their appearance. When there is no number in the third column it is to bo understood that there is a Faoulaunaccompanied by a Spot. The positions _of Faoulœ relative to the Spots with which they are associated are indicated by the letters », *, p, f, r, denotingrespectively north, eouth, preceding, following, concentric.

The Areas of Spots and Faculte are expressed in millionth^ of the Sun's visible Hemisphere.

t

Deo. 12. Faoulee ill-defined. Group 1940. Nov. зб. Л very small spot.Group 1941. Deo. 10-31. Two small spots, a and b, on Deo, 10, other spots appear between them on the succeeding days, and the group has become by Deo. 15 a stream of

spots, of which a and 6, the first and last, are the largest. Both a and Ь undergo frequent changea in shape and sise.Group 1943. Deo. 12-13. A small spot.

MïïASUBES OP POSITIONS AND ABEA8 OF SPOTS AND FACULTE UPON THE SUN'S DISK


GreenwichCivilTime.

1886.347a<296

I.

Dec. 14

348-362

I.

Dec. 15

349-282

I.

Dec. 1 6

3SO-334

I.

Dec. 17

35I-552

f1EP,M

H,EP

H,EP

H,EP

EP,M

1

313

-

15 _

á™

1941019411941I94I&

1941019411941194119410

1941019411941^

1941019411941194119416

1941019411941

1

a

iSê

®'-3

1*

illQ

0-9390-3620-3710-3830-419

0-9480-9070-3400-2990-3510-3320-3570-951

0-9650-9300-4500-4190-4110-857

0-7540-9010-8860-6130-6020-5840-590

0-5530-937

0-8850-7980-7980-782

•"i03

S

•Bv

%

f|h

0

200-3

23-525-326-432-4

196-3185-8344-8344-8351-6352-9

0-6105-5

2OO-8189-5314-43237330-4108-1

289-9192-8171-4300-2304-6301-4307-0310796-2

286-8292-3289-6296-1

TÎELIOQBAPHIC

.

1

Iо

346-5293-6292-3291-6288-2

329-2300-7

2934292-6291*129°-5287-82 1 6-6

•

330-6

299'3

295'3290-8

288-1

217-9

308-6

287-6

245'3

295-3293-3

293-I29J-8288-2

I92-6

306-52964

296-7

2937

CÎ

1

1

о

— Ó2'4

+ 18-24-18-4+ 18-9+ 19-6

-66-2

— 15-5

4-I7-9

+ 15-54-I9-0

4-lS-O

4-I9-6

-I5-I

— 65-2

-67-5

4-16-9

+ 18-3+ I9-S-l6-2

4-13-8-62-6— 62-44-IÓ-64-18-6+ 16-4+ I9-54-197- 6-3

4-14-04-16-6

+ 4-54-19-0

SPOTS.

ë ë<н<й

•"яM !

Еэа02

•g -A

•§"

2

20

17(21)

Чоо0

26

(4°)

12

О

22

(34)

2О

Z

50

20

(47)

23оо

II

SIM

•gM-£g!o

12

82

67

(89)

572

312

125

099)

838

136

(227)

1 06Ч12

2119

(253)

105ui3

FACULTE.

fО

•s?SO

ilr114

(114)

l i o98

205'

(413)

15271

88(311)

122

133

34

54(343)

126I\ 27IC

j

GreenwichCivilTime.

1886.

35 l d '552

Dec. 1 8

352-250

I.

Dec. 19

353-182

I.

Dec. 20

354-I98

I.

Dec. 2i

355-238M.

Dec. 22

356-514

Dec. 23

357-548

.сиiя

EP,M

H,EP

H,EP

H, M

EP,M

H,EP,

1

f•o§£í618 1oco

194119411941^

194101941194 ii1941

I94IO1941194119411941^

I94lZ»1941I94I

1943

19431943194319431944019441944

1945'9451943

i-S.a3A 0

fll

8 "ÍвозÍS 'S

0-7740-7500732

0-9440-8840-8400-8230-791

0-9600-9490-9320-9320-915

0-8250-9790-9680-957

0-922

0-7840-807

0-8350-8530-9430-9630-982

0-2580-2780-629

1

1

•а-<

.!.*.•s »iH

o

294-0296-2299-6

285-6289-4292-7295-7296-0

287-1289-5289-7288-4291-8

267-2289-6290-4291-0

i oo- 1

1ОГО10Г2

IO2-2

102-9984

loo-o99-8

341-0345'2

HELIOGKAPHIC

1Еш

J

О

293'5290-8288-4

306-1296-7291-0288-5285-2

296-7294-2291-2291-1288-2

266-4287-7284-7282-1

130-2

129-2127-0124-3122-4IIO'O

юбч101-4

171-6170-9128-4

1s

0

4-17-2+ 18-1+ 20-0

+ Ч'14-i6-2+ 17-9+ 19-84-19-6

+ I5-9+ 17-84-17-6•fio-o+ 19-0

- 344-18-74- 19-2+ Í94

— lo-i

— lO'O-10-3-11-4— I 2 - J- 8-3— IO-2— IO-O

4-1 1-8+ 13-2— IO-I

SPOTS.

II

«1g a.

ЕЭ"!°i?SSf i

oo

22

(45)

360

20i

(57)

4oioo

(5)

o2

O

(2)

O

(o)

3790

3ioo

(50)

oo0

IlSIo~

^ S.•s" .и ч аj la

20ч67(231)

101

460

7(172)

6747171547

093)

302532

(87)

7

(7)

15336612

252

136.

(452)

56

44

FACULTE.

1о•9 "£SO

'Sл 9

I1

(397)

224

)

j(742)

11

í 6Н6

J(634)

163]}• 398«?)

(56i)

I30C

03°)

'

» 1 22C

• 205C

(327)

The Groups of Spots are numbered in the order of their appearance. When there ie no number in the third column it is to be understood that thore is a Faoulaunaccompanied by a Spot. The positions of Faculaa relative to the Spots with which they are associated are indicated by the letters n, t, p, f, e, denotingrespectively north, south, preceding, following, concentric.

The Areas of Spots and FacuUe are expressed in millionths of the Sun'e visible Hemisphere.

Dec. 18 and 23. Photograph faint. Faculee ill-defined.Group 1943) Dec- 22-29. -A very small spot on Deo. 22. Four spots following each other in a straight line on Dec. 23. The group has further increased in size by

Dec. 24, when it is measured in three clusters. Only two of these clusters remain by Deo. 25, and only one by Deo. 28.Group 1944, 1886, Deo. 23-1887, Jan. 3. A large regular spot, a, followed by a stream of smaller spots, a has suffered a great change in shape by Deo. 28, and has

become an elongated spot with several distinct nuclei. The smaller spots have disappeared by Deo. 29, and a has broken up bv Deo. 30, principally into tworegalar spote, b and c. Only b remains by Jan. 2. Group 1945, Deo. 24-26. A number of very small spots irregularly distributed.

ON PHOTOGRAPHS TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE TEAR 1886. 73

Measures of Positions and Areas of Spots and Faculte upon the Sun's Disk — concluded.

GreenwichCivil

Time.

1886.

357d"548

Dec. 24

358-502

Dec. 25

35948o

M.

Dec. 26

360-156L

в

iА

Н,ЕР

Н,ЕР

Н,ЕР

Л,ЕР

1h

3

"íS

íо^HОЮ

1943'9431944«194419441944

194519451945194319431944«194419441944

1945'945

1945194319431944«194419441944

19431943

1S.g1Is&••&с^siдю

.я 'Sи

0-6560-6870-8410-8720-8890-913

0-3620-3950-3520-4500-535о-69з0-7290-759о'Йоз0-912

0-517o'5oi0-5060-4830-3100-4000-565o-6i i0-6320-7020-837

0-1490-228

ito

1•в«

. ? ..s -Sя ц8 -ч&

о

юз'б104- 5

98-1ion997

юо'4

308-531 1-63134ю8'7ю8'9

98-5

io i '3loo- 5Ю1'з9б>4

299'7297-0301>4299Чi i7'o115-0

99-99»'3

I O I - 8Ю2'3

95'9

1547138-6

HlSLIOGKApHIO

CJ

1u*-5

0

126-4124-1109-7106-3104-21ОГО

170-9170-7169-3128-6123-21 1 0-6107-9105-210Г2

98-5

172-7172-3171-6170-7129-2123-7III -4108-0106-7101-4

88-7

128-9123-8

41

0

— 10-6-II-6- 8-1— 10-8- 97— 10-4

+ 10-7+ 12-8

+ 12-7— 10-4— I2-O

- 7-6- 9'9- 9'5-10-5-T5-8

+ 12-6

+ IO-9

+ I3-0

+ II-4-10-5

— 12-0

- 7'7— 7'1

- 94— 10-4- 6-3

-10-3-12-4

SPOTS.

Il«ITIи ЛR ?

-'S £

•ч

0

I I25

о0

0

(36)

оооо4

49ооо

(53)

ï2

0

о48

500

4о

(69)

2

7

IIн-в

а!GO

«'s •»"«1

14ICI

2734221

41

(547)

554

2453

313386828

(538)

IO

874

15 .4i

33»7

1409

(572)

Ч5Z

FACUL-Ж.

1О.«•£î&

si«1

]> 4610)

(461)

26(26)

1 13(ИЗ)

GreenwichCivilTime.

1886.Збоа-15б

Dec. 27

361-229

M.

Dec. 28

362-477

Dec. 29

363-159

I.

Doc. 30

364-522

Dec. 31

Eë

Я

H, M

H,EP

H,HP

H,HP

1ь

1"аS

1Пdoo

19441944«1944194419441944

19431944«194419441946

19431944«»9441944194419441946

1944'-"1944194401946

1944&19441944°1946

§Si.g.вS <4a J

11S».l'a

0-3610-3710-4400-4710-4870-531

0-8270*1900-1420-2450-3050-979

0-4200-1980-149O-I2O

0-085

O-1I7

0-908

0-362

0-337

0-3IO

0-835

0-629

0-599

0-577

0-636

"в

£|

•Hл

î.•J-g'i-чfi

о

97'9104-9105-2«034107-0104-8

285-3208-1130-21 19-0114-5106-7

244-9242-624-3202-5203-7185-7106-9

25472537254-1107-8

261-1261-5261-3112-7

HELIOGRAPH to

•о

•Q>

•3

о

in-7i i i - S107-3105-1104-5101-3

172-4124-2I I2-O

I05-8

102-04O-O

124-8I I 2 - I

юб-8Ю4'б103-91O2-6

37-2

II3-6

1I2-O

ПО'4

37'2

113-6111-5109-9

37-3

.S,

bl

0

- 5-2- 7-9- 9-0- 8-6-10-5— 10-0

+ 10-9-12-4- 8-0- 9'5— IO'O— 16-9

-12-9- 8-1- 9'9

- 7'3- 9-6

- 8-3- 8-2- 77-16-5

- 8-2- 77- 7-6-16-7

SPOTS.

Il<)гэ

g!

í.«n?

«ч

o89

443o

(109)

2

380

O

o(40)

2

30

O

ooo

12

(44)

23o

1815

(56)

180

o12

(30)

IIHtj

O-2-

*!e -f If

•<

73537643284

(577)

22

3OI

81255°

(479)

9250

5338

IO2

(380)

125

7100

108(340)

100

72581

(213)

FACULTE.

n.

C5

--AUn•1a-i

(o)

83

(83)

900(90)

165/(165)

(o)

The Groups of Spots aro numbered in tho order of their appearance. When there ia no number in tho third column it is to bo understood tint there is a Fnoulaunaooompaiuod by a Spot. Tho positions of Fuoultu relative to tho Spots witli which they are associated aro indicated by tho letters n, », ]>, /, r, denotingrespectively north, south, procodin;,', following, concentric.

Tho Areas of Spots and Fauultu are expressed in milliouths of tho Sun's visible Hemisphere.

Deo. 25. Photograph faint. Spots and Faculto lll-deflned. Doc. 29 and 31. Photograph faint. Faouliu ill-defined.Group 1946, i8»6, Deo. 28-1887, Jan. 8. A regular spot.

GBEENWIOH OBSEBVATIONS, 1880.



LEDGERSOP

AREAS AND POSITIONS OF SPOT GROUPS

UPON THE SUN'S DISK,

DEDUCED FROM THE MEASUREMENT

OP THB

SOLAR PHOTOGRAPHS,

FOE EACH DAY IN THE YEAR

1886.

6 К 2

76 AREAS AND HELIOGBAPHIC POSITIONS OF SPOT GKOUPS ON THE SUN'S DISK DEDUCED FKOM PHOTOGBAPHÖ

AREAS and HELIOGRAPHIC POSITIONS of the SPOT GROUPS on the SUN'S DISK DEDUCED FOR EACH DAY from theMEASUREMENTS of the PHOTOGRAPHS taken at the ROYAL OBSERVATORY, GREENWICH, at DEHRA DUN ININDIA, and at the ROYAL ALFRED OBSERVATORY, MAURITIUS, in the YEAR 1886.

NOTE.—The Greenwich Civil Tjme at which the photograph was taken is expressed by the month, day of the month(civil reckoning), and decimal of a day, reckoned from Greenwich Mean Midnight.

The Projected Area of the Umbrae and Whole Spots is the area as it is measured on the photograph, uncorrected forthe effect of foreshortening, and expressed in millionths of the Sun's apparent disk.

The Column " Longitude from Central Meridian " gives the Mean heliographic longitude of the group, reckoned fromthe meridian passing through the centre of the Sun's disk at the moment of observation ; longitudes west of the centrebeing reckoned as positive.

Dates for which no numbers are given indicate days for which no photographic record is at present available.

Date.GreenwichCivil Time.

ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.

MeanLongitudeof Group.

MeanLatitude

of Group.

Longitudefrom

CentralMeridian.

Date.GreenwichCivil Timo.

ProjectedAieaof

Umbra. WholoSpot.

Area forGroup.

Umbra. WholeSpot.


MeanLatitude

of Group.

Longitudefrom

CentralMeridian.

Group 1819, Group 1821.

1885. aDec. 25-130

26-1432744328-14429-51630-12731-150

1886.Jan. i-z i o

2-424

Means

99

3524255345

Ч13

4532

251

228225

3°9258

14268

8S

201212

28

26

10

13

3921

144

119

146

98

70

101

243-4

244-0

242-8

244-9

243-8

2444

244-4

247-2

244-48

+++++

7'9

7'i7-07'°7'57-06-8

7'37-6

-53-3-39*4-27-4— 12-1

+ 4'9+'12-6+ 26-9

+ 42-0+ 597

1886. a

Jan. 2-4243'4-24054926'2l67-1488-2169-196

10-1551Г21О

12-23I

13-266

14-524

I5-257

Means

92I 12

123

202

124

118

147

123

8762

8о

133

629832

IO2O

95786884868048135080

12

76

74no57617975646418

60

4°3

61756549 !550490445453410353361170loo

416

106-4

104-6104-9104-4103-9104-5104-7103-2104-8105-3105-9105-2105-1

104-84

- 13'°

14-2H'3i3'914-014-2i3'514-414-1H'3

-8п

- 59'3— 42-2- 33'i-21-4- 6-7+ 6-4+ 17-5+ ЗЗ'

1

+ 47-0+ 6Г2

+ 77-1+ 86-5

Group 1820.Group 1822.

1885.Dec. 31-150

1886.Jan. raio

2-4243-4-240549*6-2167-148

Means ...

910

12

7IO

2

15286

58322013

10

8

745i

143

16864

321710

7'

63

141-0

141-5141-4

141-6141-6141-21417

141-43

+ 8-9+ 9'°

+ 9'5+ 9'5+ 9-6+ 94

+ 9'3°

Jan. 4'24°

-76-5

— Ó2-O— 46"!

-22-3

- 5'5+ 37+ 16-4

22 I I 1-6 - 52-3

Group 1823.

Jan. 7-1488-2i69-196

10-155Means

135оо

5953

63оо

29

28

74

«7

126-5126-9126-0

126-00

- 6-1- 6-1- 6-1- 6-6

- 6-23

- 0-7+15-3+ 28-6+ 4°'3

TAKEN AT THB ROYAL OBSHBVATOBY, GBHENWICH, IN INDIA, AND IN MAURITIUS, IN THE YiEAB 1886.

ABBAS and HELIOGBAPHIO POSITIONS of SPOT GBOUPS on the SUN'S DISK.— continued.

Duto.


ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

MeanLongitude

of Group.

Mean

Latitudeof Group.

Longitude

fromCentral

Meridian.

Group 1824.

1886. ,1Jan. 7448

8-2169-196

10-155

Means . . .

0

ооо

...

II

176

7

...

о0

о0

о

7IO

34

6

0

95-894498-297-6

96-50

+ 12-6

+ 134+ il'9+ 117

+ 12-40

0

-29'5- 16-8— o-i+ 1 1-9

...

Group 1825.

Jan. 8-2 1 6 о 4 о 4 54'5 - 97 -567

Group 1826.

Jan. 8-2169-196

• 10-155I I - 2 I O

I2'231

I3-266

14-524

I5-257

I6-45I

I 7-54I

Means

IO

59114112

104

88355550

5

...

473665327377147474« S431311137

...

257°9572

5<46i82828

3

44

40645344848039538220822218195

327

32-131-932-532433'i3*'933433433432-1

32-72

- 4-1- 4-0- 3'9- 4-0- 3-6- 3-8- 3'3- 34- 37- 3'5

- 373

-79-1-66-4- 53-2- 39'3-25-2- 11-8+ 5'3+ I4'8+ 3°'6+ 43-8

...

Group 1827.

Jan. ii -2 IQ12-23113-166

Means

320IO

...

118'S1

76

...

2

'917

»3

8o138122

ИЗ

П4'8115-4117-2

115-80

— I I - 2-10-3-II-8

— 1Г1О

+ 43'i+ 57-1+ 7*'5

...

Dato.Grooivwioh

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.

MeanLongitude

of Group.

MeanLatitude

of Group.

Longitude

fromCentral

Meridian.

Group 1828.

1886. d

Jan. 12-23113-26614-52415-25716-451

17-541

18-19-50820-51421-142

Means

281 0643173174in

*7Чо

...

181668

1242140712991428

5'7175

27

...

17557789

100

77

3439о

54

107 •35°025

722

741956

65053°i6i

538

0

26-428-53°731-03i ' i30-1

29730-627-2

29-48

о

- 97-i 0-4— IO-Z— IO-I— 10-2

- 9'9

— Ю'О- 9-8-10-5

— 10-09

о

-31-9— l6'2+ 2-6

+ 12-4+ 28-3+ 41-8

+ 67-2

+ 81-1+ 86-2

...

Group 1829.

Jan. 13-26614-52415-25716-45117-5411 8-19-50820-51421-14222*213

Moans

о6

4342г 6

о452

...

442332543*6207

47

?648

...

Jan. 16-451

i7'541

Means

ОО

...

21

S

...

0IO

32241502

42

IO

9°224189195ni

2422

42

7

IOO

329-933°7332-8333-2333-5337-1337-533843394

334>69

+ 94+ 8-7+ 94+ 8-6+ 8-8

+ 9-1+ 9'8+ 94+ 9'6

+ 9-I7

-74-8- 574-45'8— 29-6— 14-8

+ H'6+ 28-0+ 37-1+ Sí'5

...

Group 1830.

о0

о

43S

24

286-4287-9

287-15

- 2-7— 2'2

- 245

-76-4— 60-4

...

Group 1831.

Jan. i7'54i о IO 0 Ч 279-3 - 5'8 — 69-0

78 ABBAS AND HELIOGRAPHIC POSITIONS OF SPOT GROUPS ON THE SUN'S DISK DEDUCED FROM PHOTOGRAPHS

.AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS 011 the SUN'S DISK — continued.

Date.Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

MeanLatitude

of Group.

Longitude

fromCentral

Meridian.

Group 1832.

1886. u

Jan. 23-239 о 20

Jan. 30-2633i'23i

Feb. 1-4802-2893-2804'5б75-1486-4797*2398-4599*449

10-15011-151

Means ...

о20

3267

81

453930Ч22

9оо

...

HO

'59

2544034°34193602OI

172101

5410

7

...

О Il

о

281-9о

- 8-3

0

+ 8-6

Group 1833.

о21

234i4424

23

i6

,1IOо0

17

196167

1822462192132091091 0278681318

140

106-31 06- 1

ï об- 1107-1107-4108-4109-4108-3107-5109-7113-8106-2104-5

10775

-147— 14'8

-15-0-15-6-15-0-154-iS-3— 14-6-15-1-14-9— I3'5-15-0-14-9

-14-91

-747— 62-0

-45-6- 34*°— 2O-6

- 27+ 6-0+ 22-4+ 31-7

+ 49*8+ 67-0+ 68-5+ 80-0

...

Group 1834.

Feb. 4-567 о

Feb. 4-5675-1486-4797-2398-4599*449

10-15011-15112-18013-17014-18615-25016-186

Means

23

5566

182128'34167

Т160136675624

...

26 о 13 115-4 - 7*0 •+ 4*3

Group 1835.

2293485677578208618929578176844A5

2OZ

"5

...

457552

120

?i69

83778

0987526653

72

4414764494984534414464864544383333"259

422

35'334-234'<534*535*o35*335*835*335-536-135436-136-3

35-34

— io-о- 9*4- 9-8- 9*5— 9-5- 9*5- 9'5- 9*3- 9*4- 9*4- 9*5- 9*3- 94

- 9'5°

-75-8— 69-2-5i*3-4i'3

- "'S

~ ri+ 10-8+ 24-6+ 38'3+ 5*'°+ 657+ 78-1

...

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Moan

Latitudeof Group.

Longitudefrom

Central

Meridian.

Group 1836.

1886. „Feb. 7-Z39

8-4599*449

10-15011-151

Means ...

Feb. 8-4599*449

10-150

Means

121812

40

...

75892920

9

...

о7о

...

12

7221

...

6îго

. 5

4Á4*ï6IIб

24

Group 1837.

оiiо

4'

IO

9950

53

0

56-458-859-660-760-9

59-28

о

+ 7-0+ 7'o+ 6-9+ 6-6+ 6-9

+ 6-88

e

- 194— I-I+ 12-8

+ 23-0+ 364

...

116-311 6'2

IIO'I

Il6'20

- 6-6- 6-5- 7*5

- 6-87

Group 1838.

Feb. 8-4599*449

10-150

Means

Hоо

...

5726

6о

...

8о0

3

3'1330

Ч

35'1

35437*2

35*9°

- 4'i- 4*3- 4*4

- 4*27

+ 56-4+ 69-4+ 784

...

-24-8- 11-4- °*5

...

Group 1839.

Feb. 11-151 5 15 3 IO 6у7 - 9'2 + 43-2

Group 1840.

Feb. 11-15112-18013-17014-18615-25016-18617-251

Means

оо

гб18о83

...

849

182

"5597137

...

оо

H12

0

IO10

7

425

10375559<120

68

22'625-0

20-2

24-527-8zí526-4

2543

- 6-0- 6-1- 5*3- 5*6- 5*o"6'1- 5*6

- 573

- '*9-t- 14-1+ 28-4+ 40-1+ 574+ 67-3+ 82-3

...

TAKEN AT THE ROYAL OBSBRVATOHY, GREENWICH, IN INDIA, AND IN MAUBITIUS, IN THH YEAR 1886. 79

ABBAS and HBLIOQBAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.


ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.


MeanLatitude

of Group.

Longitudefrom

CentralMeridian.

ïGroup 1841.

1886. dFeb. 11-151

I2'l8o

13-170

Means

о0

о

...

10

Зб5

...

О

О

о

о

12

29

3

Ч

0

317-5317-9319-1

318-16

e

— I I - 2

- 9-8- 9'7

— 10-23

о

— 67-0- 53-0-38-7

...

Group 1842.

Feb. 17-25118-18119-27720-16221-112

22-525

23-I57

Means ...

2

3843о0

...

!938394512

17

15

...

44732

О

О

3

454732

30788

25

225-1224-8224*6224-4224-3224-7224-9224-69

-I5-7-16-3-17-1

!74-17-6-17-8-17-8

— 17-10

-79'°— Ó7'o-52-8

41 3- 28-8- 9'9- »'S

...

Group 1843.

Feb. 20-16221-112

22-52523-15724-42925-200

Means ...

»423

О

оо0

...

193104

86ISо3

...

712

0

О

оо

3

100

5446

90

3

35

25Г2

252-3252-6

256-6

256-4

253-82

-НЧ-H'5-i4'i-13-0

-J2-3

-13-66

-Н'5- 0-8+ I8-0+ 30-2

+ 57-0

...

Group 1844.

Feb. 25-20026-42827-47228-196

Mar. 1-2072-45434354'473

Means

оI Iо7

52

0

0

...

328i4484

648

uЧ

...

0

7о4

гïо0

2

35572544

3i

í9

26

1357138-2140-1140-5

138'1142-3142-3142-7

139-99

- 9-1- 9'3- 9'3- 8-8

- 9'9- 94- 9-5- 9-6

- 9'3<5

-637-44'9-29'3-194

- 8-64-12-0

+ 25-1+34-9

...


Pi ejectedArea of

Umbra, WholeSpot.

Area f orGroup.

Umbra. WholeSpot.


MeanLatitude

of Group.

Longitudefrom

CentralMeridian.

Group 1845.

1886. ц

Feb. 26-428 I is I 8

0

187-7

a

+ 5-6

о

+ 4'6

Group 1846.

Feb. 28-196

Mar. 1-2072-4543435

Means ...

0

160

о

...

32

441617

...

о

IO

0

0

3

17

2612

17

18

1747

174-2178-5179-0

176-60

-I4-3

-14-213 V

-J34

-13-95

+ I4'8

+ 27'54-48-24-61-8

...

Group 1847.

Fob. 28-196

Mar. ï -2072-45434354-4735-2176-2267-5078-4309-448

10-41911-465

Means ...

8

669595

120

139f677iSi18

5

...

138

7701280131712851165959705654436288136

...

Feb. 28-196

Mar. 1-2072-454343544735-2176-2267-507

Moans

0

1921

22

6

27

5о

...

22

82I Об

no787122

H

...

Ч

727i57647947364337178

46

283

8769618087036034893843963>8276210

526

82-s

8i'982-282-782-383-684-283-884-484-484-683-9

83-38

— 16'7

-16-8-17-2-I7-3

-174-I7-3-17-2-17-3— 17-0— 17-0-17-2

— 17-16

-774

-64-8—48-1-34'5

21 3

— IO-I

+ 374-20-2

4-33'Q+ 46-S+ 594-f-72'5

...

Group 1848.

о

27

17Ч

3Ч

3о

10

80

120

867*4437n

7

57

77'3

77-677777'376-977778-078-3

77-60

- 5'2

- 5-4— 6-0- 6-0- 5'9- 5-8- 5'9- S'«

- 575

-82-6

—69-1-52-6-ЗУ9-26-7— i6-o- 2-5+ 47

...

80 ABBAS AND HELIOGRAPHIC POSITIONS OP SPOT GROUPS ON тнв SUN'S DISK DEDUCED PROM PHOTOGRAPHS

AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.

Mean

Longitude

of Group.

Mean

Latitude

of Group.

Longitudefrom

Central

Meridian.

Group 1849.

1886. á 'Mar. 2-454

343544735-2176-2267-5078-430

Means

1617II6l998844

...

75195382479822541

449

...

886

36759985

45

3899

205284602618890

391

о

123'Q

124*6

I24-0

I25-8

I27-3

I27-5

126-7

125-69

о

- i'5- i-з- 1-6— 1-2— 1-2- 0-7- 1-5

- Г29

о

- 6-4+ 74+ 20-4

+ 3244-46-8+ 63-9+ 75'3

...

Group 1850.

Mar. 3-43544735-2176-226

Means ...

3о6ï

...

24272713

...

2О

4I

z

Ч161712

Ч

Group 1851.

Mar. 3-4354473

'Í2I26'22б

7-507

8-4309-448

10-41911-46512-207

i3'56914-219

Means

,125383028201824

Ч2

...

Sí961491942132792312271571324434

...

2O1821

24

l6

14IO

91412

53

Ч

127

10812612611714411611891

934344

104

I30-2

130-3

I3I-8

I35'3

131-90

+ 10-2

+ 9'5+ 9'5+ 9'o

+ 9'55

+ 13'о+ 2б'7

+ 38-I+ 54'8

...

39-9

39'540-340-641-041-141-442-042-142-442742-8

41-32

- 34- 3'i- 2-7— 2'2

- 27

- 2-8- 2-6

- 2'7

- 27

- VS— 2"2

- 2-3

- 2-66

-77-3— 04' ï- 534-39'9— 22'6

— ю'з+ 3-5+ i6-8+ 307+ 4°'9+ S9'o+ 677

...

Group 1852.*

Mar. 3-43544735-2176-2267-5078-4309-448

824

3iSo52

S*46

62164228316338378374

2432

Z935292723

19422O

2I4

22O

1 92

196186

35434735435735735'935'9

- 8-8- 8-8- 8-4- 8-1- 8-6- 8-6- 8-4

- 8i-8— 68-9-58-3-44-8-27-9-IS'S— 2-O

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra, WholeSpot.

Area f orGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group.

y

Longitude

fromCentral

Meridian.

•Group 1852 — continued.

1886. üMar. 10-419

11-40512-20713-56914-21915-229

Means

5°3775384412

...

368576480H'246101

...

262О

48314521

3°

188

317307274244182

ггб

о

Зб-о35'936-135'5

.35-536-2

35-68

о

- 8-3- 9'3- 9'2- 9-0- 9-0- 8-9

- 8-72

о

+ ю-8+ 24'5+ 34-6+ 5i'8+ 60-4+ 74'S

...

Group 1853.

Mar. 4-4735-2176-2267-5078-4309-448

10-41911-46512-207i3'56914-21915-22916-327

Means

12

45123

1 68197129178153178142201

Ю4

56

...

744738ig

II43139714.6913291383"75969798601296

...

3262

112

110

112

67

88789992

149Ю9из

94

1967oi7б2

7бз79976s66o705653629592632603

651

23-823422-722-322-6

22'2

22-5

22-6

22-7

23-0

23-0 '

23'5

234

22*90

- 5fo- 4-8- 4-6- 5'2- 5'5- 5-2- 5'3- 5'3- 5'3- 5-0- 5-0- S'i- 4'3

- 5-05

-79'8-70>3-57-8-4 I >3- 28-8- i5'7- 27+ "'Z

+ 21-2

+ 39-3

+ 47'9+ 6l-8

+ ?6-I

...

Group 1854.

Mar. 16-32717-44018-20219-46520-159

Means ..:.

Mar. 18-20219-46520-15921-19622-205

Means ...

1819

S8

...

0

о42О

...

321031794574

...

3иЧ8

21

12

1768

1426o

171

92

331-23337334'°3347334-8

333-68

— lO'l

- 9'3- 9'5- 8-8- 8-9

- 9-32

+ 23'9+ 41-1+ 5 I - 5+ 68-7+ 78-0

...

Group 1855.

6i iЧ27

4

...

0

О

2

I

0

I

99

i ii6

2

9

2 I I - I

213-2

209'6

2 I I ' 7

2IO-7

2II-26

- 12-3- 12-4- n -8- 12-6

— I2'3

— 12-28

-714-52-8-47'z-31-4- 19-1

...

TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IK INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 81

AREAS and HBLIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.


ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholoSpot.

MeanLongitude

of Group.

MeanLatitude

of Group.

Longitudefrom

CentralMeridian.

Group 1856.

1886. fl

Маг. 1 8-20219-46520-15921-19022-20523-14124-4662|'59426-42627'Иб28-18829-42130-23»

Means

8304662

97164

976270784222

9

/

65

21533539°592594633557516428281H3

57

...

35394645578850334048332728

44

268275329280

3543193-25294295262221I76

172

275

0

200-22ООЧ

• 198-5199-2199-31 99- 1199-3199-7

. 199-82OO-OI99-8I99-6ZOO' 2

199-60

0

+ 5-0+ 4'9+ 5-2+ 5-3+ 5-6+ 5'5+ 54+ 5-3+ 5'5+ 5'5+ S't+ 5-6+ 5'5

+ 5-36

-82-3-б5'9-58-3-43-9-30-5-18-3- 0-7+ Ч!5+ 25'6

+ 34'9+ 48-9+ 65-0+ 7б'3

...

Group 1857.

Mar. 1946520-159

Means ....

0о

...

52H

...

оо

о

3612

24

3II-43I2-9

3 I 2 - I 5

- 13-0- 12-8

— 12-90

+'45'4+ 56-1

...

Group 1858.

Mar. 20-15921-19622-20523-14124-46625-594

Means ...

45°

*!3<582

...

97210

184I87

5£26

...

2

2424216

3

13

51IDO

98I I O

423°

73

244-3244-3146-7

247-5249-0248-9

246-78

+ 2-5+ 2-2+ 1-8+ 1-7+ i-i+ o-i

+ 1-57

- 12-5+ 1-2+ 1б-9+ З0"1

+ 49'°+ 637

...

Group 1859.

Mar. 23-14124-466

.25-59426*42627-11628-18829-42130-23231-418

О

32

7963

из8o94736o

70

415

5597337416684885*5438-

о38.64

f644i473835

2035°544 !481420348244273264

I37-2

1344

1354134-2

134-8

I35-3135-8ISO'SI37-1

— -о- -6— -i

— -2

— -о

— *2

— 8о-2-б5'6- 50-1— 40-0- 3°'3-IS-6+ Г2+ 12-6

+ 28-7

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.

Mean

Longitude

of Group.

Mean

Latitudeof Group.

Longitudefrom

Central

Meridian.

Group 1859 — continued.

1886. d

Apr. 1-38624323-567.4-102

Means • . .

3l361523

...

331234178158

...

253222

49

38

225205

249341

323

о

137-6136-71357136-3

135-90

— Г2- 1-4- 1-8- 1-8

- 1-30

о

+ 42-0+ S4'9+ 69-0+ 76-6

...

Group 1860.

Mar. 26-42627-11628-18829-42130-23231-418

Apr. 1-38624323-5674-1025-446

Means . . .

Mar. 29-42130-23231-418

Apr. 1-3862432S'S6?4-1025-4466-4197-2868-5449-417

Means ...

о238i5i

12743

132123123129

J3

...

22118483929

IOO8

939

102713521024796205

...

0

19S1

276558

7378

Ч120

3°

57

22

953°34995i8487

566849808755453

487

113-2ilz-8114-1I14-9I I S ' 3116-5

117-2117-4117-0118-0I20-O

Il6-04

-15-8-16-6-16-8-167-16-8-17-0

-17-1-17-2-174

17 о-1б-з

-1679

— 6ro-52-3- 36-8- I9-7- 8-6+ 8-1

+ 2Гб

+ SS'«+ So-3+ 5»-3+ 78-1

...

Group 1 86 1.

о8о

12IO

444322

î963

8IO

...

133461

2181193603733684094744489

...

012

О

46

2322

13i?4o

712

13

274748

H366

185190210

2343°31 35.101

141

57-3

S3'7

57'2

55-856-954-7554SS-856-9S5'956-254'3

55-84

ï г8-11-9-П-4

-II-9-II-5— u-8-11-7-11-7-11-4-п-в-II-8-12-3

-"75

77 3— 70-2-51-2

-39-8- 24'9— I I'D

- 4'3+ 13-9+ 27-8+ 38-»+ 55-1+ 647

...

GREENWICH OBSBUVATIONS, 1886. S L

82 AREAS AND HELIOGEAPHIC POSITIONS OP SPOT GROUPS ON THE SUN'S DISK DEDUCED FROM PHOTOGRAPHS

AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.


ProjectedArea of

Umbra WholeSpot.

Area f orGroup.

Umbra WholeSpot.


MeanLatitudeof Group.

Longitudefrom

CentralMeridian.

Group 1862.

1886. d

Mar. 30-23231-418

Apr. 1-386

Means

0о

О

...

145

9

...

0

о

о

0

184

6

9

о

56-I577

54'9

56-23

- 8-7- 9'o

- 8-8

- 8-83

о

-6у8- 5°7

-407

...

Group 1863.

Mar. 31*418

Apr. 1-386.2-4323'5674-1025-4466-4197-286

Means ...

0

о0

о

'9ооо

...

13

Ч3048861687

о

ооо

10

ооо

I

!9

Ч21

28

46

844

18

37-8

37-637-838-238-337'937-137-2

3774

- 10-7

— I I'D-u-9— II-6-11-9— 1ГО— 10-7- 11-9

- n'34

— 70-6

— 58-0-44'°-28-5-21-4

- 4'°+ 8-0+ !9'5

...

Group 1864.

Mar. 31*418

Apr. 1-3862-4323-5674-1025-4466-4197-2868-5449-417

10-4791 1-627iî'437

Means

о

444479

IOI112п8z i g1059373376

...

57

1702864304765H538518481420341

19573

...

о

654°

и58596о58

I9

6о48Ч

49

217

248256

283

288200

2702б3

208

207

279251176

2S6

25-5

25425-625-825-826-426-327-027-027-728-028-028-1

26-66

- 4-6

- 4'9- 5'3- 5'3- 54- 5'5

~ 5'1- 5'6- 5'9- 5-8- 5'5- 5'5- 57

- 5'4z

— 82'9

- 70-2-56-2-40-9- 33'9- i 5 - 5- 2-8+ 9'3+ 25'9+ 38-1+ 524+ 67-7+ 78-5

...

Group 1865.

Apr. 2-4323-5674-1025-4466-4197-286

Means ...

оо9ооо

...

20287i24Ч

3

...

оо5о0о

I

IO164320

188

19

89-890-891-692-994'596-2

92-63

+ 7'5+ 7'3+ 74+ 7'6+ 8-0+ 8-1

+ 7-6S

+ 8-0+ 24-1+ 3i'9+ 51-0+ 65-4+ 78-5

...


ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.


Mean

Latitudeof Group.

Longitudefrom

CentralMeridian.

Group 1866.

1886. „Apr. 7-286

8-544

Means ...

Apr. 10-47911-627

Means

0I

...

о0

...

1720

...

0I

, I

9II

IO

Group 1867.

2647

...

О0

0

ч20

23

о

23'9247

24-30

о

+ 154+ Ч'5

+ Ч-95

о

+ 6-2

+ 23-6

...

293-2294-2

293-70

-24'3— 25'О

-24-65

-42'4— 2Ó-I

...

Group 1868.

Apr. 15-55716-389

Means

оо

...

iS8

...

оо

о

84

6

243-2244-3

243-75

- 8-7- 8-8

- 8-75

-254-I3'2

...

«

Group 1869.

Apr. 15-55716-38917-10218-10319-39120-57821-15922-4302345124-49925-582,26-564

Means

2O

ll3629!92333181921

О

О

...

ï об146102

222

213

i»?22O

I II

121

78

27

25

...

гб1727i8IO12

17IO

13» 1 7

Оо

Ч

4i134121

13б112

95Xí3627866

I462

96

201-4201-420Г2

2OI-2

201-4

20Г92O2-I

2О2'32О2Ч

203-320Гб

20ГЗ

20Г77

+ 4'7+ 4-2+ 44+ 44+ 4-3+ 4'°+ 4-3+ 4-2+ 4'2+ 3-8+ 4-2+ 4-3

+ 4-25

— 67-2

-56-1

-46-9-33-6

— l6'4

- О'З

+ '7-6+ 24-6+ 37-8+ 53-0+ 65-6+ 78-1

...

Group 1870.

Apr. 16-38917-102

Means ...

75

...

3352...

43

4

1728

23

264-3265-0

264-65

+ 117+ I2-I

+ 11-90

+ 6-8+ 16-9

...

TAKEN AT THB ROYAL OBSBRVATOEY, GKBBNWIOH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 83

AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitude

of Group.

Longitude

from

Central

Meridian.

Group 1871.

1886. d

Apr. 19-39120-57821-15922-430Z345I

Means

418

23Ч0

...

3492

122

5612

...

616

178о

9

Group

'Apr. 19-39120-57821-15922-43023451

24-4992PU226-56427-38828-52429-51130-389

May 1-433

Means

421

3825

15352O

1312

518Ч

о

...

58

214

151214

171

172

171

150

47325'413291

• 51

...

1224

îi9

1810

773

1720

0

Ч

528l

91

336

53

о

147-8i48-7148-9150-0150-4

14946

0

+ s -9+ 9-1+ 9'3+ 8-2+ 7'9

+ 8-68

0

—70-0-53-5-45-6-277-13-9

...

1872.

165247'37136

9589867726

220370413

148

170

i37'9138-11384139-2139-1i39'31394!397i39'913974°'3141-8

i38-.9

139-36

- -6~~ '3- 0-9

- 3— 2-O

- 7'5'3

- 7- '5

- 0-5

- 1-38

-79'9—64-1-56-1-38-7-25-2— I I-O

+ 34+ 16-5+ 27-7+42-5+ 56-2+ 69-3

+ 80-2

...

Group 1873.

Apr. 20-57821-15922-430Z34SI24-499

Means

о2

30I

...

u26673825

...

0

43оI

2

25

g25Ч

33

126-4124-5124-1125-7125-3

125-20

+ IO-I

+ I2-I+ 12-0

+ 9'9+ 10-0

+ 10-82

-75-8—70-0-53-6-38-6— 25-0

...

Group 1874.

Apr. 20-57821-15922-43023-45124-49925-582

187i649l96

101

128249503691653783

67

13762725954

463480495jo8398425

118-9118-7118-3118-0117-8117-5

-17-6-i8-i— 18-4-18-8

j g . j-18-8

-83-3--75-8-594-46-3

3Z 5-18-5

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra.WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitude

of Group.

Mean

Latitude

of Group.

Longitude

from

CentralMeridian.


1886. üApr. 26-564

27-38828-52429-51130-389.

May 1-4332-4063418

Means

98130!34

ë310

...

764774677634548

333257

95

...

Sl\43

694038

64

395399373388393

320

3<5

Зб5

4!3

о

i i7 '9117-9117-4116-9117-2

116-81 16-4115-9

117-54

-18-3-18-5— 18-4-18-1-18-1

— 18-0-18-1— 18-0

-18-26

0

- 5'3+ 57+ 2O-2+ 32-8+ 447

+ 58-1+ 70-6+ 83-3

...

Group 1875.

Apr. 23-451 о 13 о 6 163-0 - 6-5 - i'3

Group 1876.

Apr. 27-38828-52429-51130-389

May 1-4332-40634i844325-5536-4547-4628-1859-524

Means

о172829

52

Si4552

4548

II0

...

+3c136228285

35°35734132930922417914647

...

о21

23

!9

ч20

23

2726

32

Ч29

о

21

43164185188

196186172

1711791461511б2

13"

1б7

31-331-53I-93I-7

32-232-332-6.32732-732432-532-8 '31-6

32-17

- 6-6- 6-5- 6-6— 6-6

- 6-8- 6-6- 6-s- 6-7- 6-6-6-4— 6'2

-6-5— 6-0

- 6-51

— 8o'9-657- 52-2— 40-8

-26-5- I3-5

O'O

+ 13-5+ 28-4+ 40-0+ 53-5+ 63-3+ 79-8

...

Group 1877.

Apr. 28-52429-51130-389

Means

ооо

...

2910

25

...

ОО0

о

Ч12

12

55'955-2

55-9

55-67

- 3'3

= Î5- 3-70

-4i'3— 28-9- 16-6

...

в La

84 ABBAS AND HELIOGBAPHIC POSITIONS OF SPOT GKOUPS ON THE Sun's DISK DEDUCED РЖШ PHOTOGBAPHS

AREAS and HELIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.

Date.Greenwich

Civil Time.

ProjectedArea of

Umbra. "WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitude

of Group.

Mean

Latitude

of Group.

Longitude

fromCentral

Meridian.

Group 1878.

1886. d

Apr. 29-51130-389

May 1-4332-4063-41844325-5536-454

Means ...

128

Si135'59136

58So

...

96

H5

463147214171099

841456

...

64

26

75iO4112

73u6

65

5°73

238819910888

983884

боб

о

68-968-5

69-56977°'370-2

68-9

67-7

69-21

о

- I I - 3- II-4

-114— II-6~ l l ' ï— 11-6— I 1-2- 1 1'6

- "45

о

- 15-2- 4-0

+ 10-8+ 23'9+ 377+ 51-0+ 64-6+ 75-3

...

•

Group 1879.

May 1-433 о 23 0 21 0-7 - "'S — 58"°

Group 1880.

May 2-40634184-4325-5536-4547-4628-1859-524

10-46011-265I2'l6o

»З-ЧЗ

Means

13719383

287iS i .193

739i

ro437

3

...

344746

nu1600198720271794H351066674254

72

...

3i878o

£416379

IOO40577738

5

68

809942944

104811251054925778651495258I3Í

763

328-9327-1326-9320-5328-1328-6328-833°'5331-93344337-23374

33°'53

+ 8-7+ 8-4+ 8-6+ 8-6+ 87+ 8-4+ 8-5+ 8-4+ 9-0+ 8-8+ 87+ 8-3

+ 8-59

-76-9-65-5- 52-3-37-8- 24-3— io'4- 0-7+ 187+ 324-f- 45'6+ 60-3+ 73-6

...

Group 1 88 1.

May 12-16013-145

Means

о8

...

ë...

o4

2

1833

26

276-9277'3

277-10

— 22-8— 23'0

— 224)0

ï O-O

+ I3-5

...

Dato.GreenwichCivil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group.

Longitudefrom

CentralMeridian.

Group 1882.

1886. й

May 13-14514-091

Means

о12

...

9573

...

012

6

7380

77

о

313-2ЗЧ'З

3I37S

0

- 5-8- 5'6

- 5-70

о

+ 494+ Ó2'9

...

Group 1883.

May 20-097 II 24 7 15 205'3 — ÏO'2 + 33'5

Group 1884.

May 21-40322-19423-67824-09825-57326-44927-52628-39329-5293°'48331-544

June 1-5242-417

Means

22

3792

1241441211731351179877

5i25

...

992674785295776ii708618560502389

21793

...

645373898163887067

is67

6663

70

2873863803773273203603^1323333337

282235

328

74-374'674-174-073'974-274-074-374'374-474'4

74'S74-0

74-23

— iro— I0'9— Ю'4— 10-6— 10-6— I0'7- 10-7— 10-7— 10-6— Ю'6— 10-6

- 10-5— Ю'4

— 10-64

— 8о-з-б9'6-50-5-45-0-•5-6- 13-6+ 0-5+ 12-1

+ 27'2

+ 39'9+ 54-0

+ 67-0+ 78'4

...

Group 1885.

May 22-19423-67824*098

Means

0

I618

...

IO

58"5

...

оIO2313

757

138

67

1837182-81837

183-40

+ 10-8+ 10-6

•f ю-б

+ 10-67

+ 39'5+ 58-г+ 647

"'

TAKBN AT THE ROYAL OBSERVATORY, GRBHNWICH, IN INDIA, AND IN MAURITIUS, IN THB YBAR 1886. 85

AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.


i

ProjectedArea of

Umbra WholeSpot.

Area forGroup.

Umbra WholeSpot.



Longitudefrom

CentralMeridian.

Group 1886.

1886. „May 24-098

Z5-57326-44927-52628-39329-52930-4833i a544

Means ...

0969

131684

...

I ISiS«70б£5б3222

...

0I I

67842

5

5б6o444£з<529i6u

37

о

34-234-834'734-834'935-035-135-3

34-85

0

-5'9-5-8

-*+— 6-2

-6-0

-5-8-54-5'3

-S-85

D

- 84-8

-647

- 534

-38-7

-27-3

— I2-I

+ 0-6+ H'9

...

Group 1887.

May 29-52930483

Means ...

о4

...

27128

...

О2

I

1876

47

5'55-0

5'25

+ 11-4+ II-2

+ II-30

-4гб-29'5

...

Group 1888.

May 304833I-544

June 1-524

Means

12

46

H

72200

73

...

II67

45

41

70319

241

210

90-89Г2

88-6

9О-2О

- 12-5- 12-6

- 12-8

— I2-63

+ 5б'3+ 70-8

+ 8п

...

Group 1889.

May 31-544

June 1-5242-417

Means ...

о

80

...

36

*413

...

i

5о

2

20

1510

Ч

4°Ч

41-742-2

41-43

+ 1 4-0

+ 4-3+ 14-0

+ 14-10

+ 2О-О

+ 34-2+ 46-6

...

' Date.GreenwichCivil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot


ï


Longitudefrom

CentralMeridian.

Group 1890.

1886. „June 2-417

3-089.4-38254736-5727-4298-402

Means . . .

320

. 49

40120

...

74176128

"К2Об

96

79

...

2

IO2

527IOo

8

4091

67

б51347993

8i

э

338-4337'9340-4338-0339'2340-4340-6

339-27

о

+ IO-I

+ IO-I

+ 9'8+ 10-8+ 10-6

+ 10-3+ lO'I

•f 10-26

о

- 17-2

- 8-8+ Ю'7+ 22-7+ 38-5+ 514+ 64-2

...

Group 1891.

June 3-0894-38254736-57274298-4029-420

10-30111-40212-383

Means

6

98

»97179207177163119

5418

...

45541

10481232

144012599H6i 3

339по

...

459

10594

in10443I057661

83

35325558641770

242

03°534475377

509

297-8299-8301-9302-1

302-3303-5304-1304-5304-9305-0

302-59

- 14-4- 14-7- 14-9- 15-2- 154- Чч- 147— 14-4- 14-1- Ч'З

- H72

-48-9-29'9

- 134+ «Ч+ 13-0+ 27-1+ 41-2+ 53-2+ 68-1+ 81-2

...

Group 1892.

June 4-38254736-572

Means

ооо

...

85812

...

oo0

o

5S'i8

25

7-8ю-з12-3

ю- 13

- I3-3- 12-8

- 12-3

— 12-80

+ 38ч+ 55-0+ 71-6

...

Group 1893.

June 6-57274298-402

Means

0

оо

...

2428

23

...

oo0

0

>522

24

2О

337-3339-0338-0

338-ю

- S'o-4'9-4'7

— 4-86

+ 36-6+ 49'7+ бгб

...

86 AREAS AND HELIOGRAPHIC POSITIONS OF SPOT GROUPS ON THE SUN'S DISK DEDUCED PROM PHOTOGRAPHS


Date.Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitude

of Group.

Mean

Latitude

of Group.

Longitude

fromCentral

Meridian.

Gronp 1894.

1886. „June 6-572 0 8 О 5

0

ЗЗЗ'оft

о

+ 5-1

0

+ 32-3

Group 1895.

June 9-42010-301

Means

О0

...

u8

...

ОО

0

16

7

12

194-6194-2

1944°

+ 5-1+ 5-1.

+ S'io

- 68-3- 57-1

...

Group 1896.

June 16-46017-50018-16419-42920-36621-19622-54923-38524-39325-391

26-417

Means

II1927

172O

2928

1822

Ч

5

...

6884

127

190i8817316145

7<5<16

...

IS1922

II

II

Ч

15IO

14IO

5

Ч

ИЗ82

I O21181059i8582

•484317

81

98-298-398-198-197'998-097'898-498-098-198-1

98-09

— 14-6- Ч'9- 15-0- Ч"7-14-7— 14-6- 15-0- 15-0- I5-3- I5-5- 157

— 15-00

-71-6-57-8-49'2- 324— 2O-2

- 9'1+ 8-7+ 2O-2

+ 33-z+ 46-6

+ 6o- 1

•••

Group 1897.

June 17-50018-16419-42920-36621-19622-54923-38524-39325-39126-41727-48428-398

Means

о27

453°3537!9

131720

8о

...

821362572782762702501972031449719

...

оSi4222

21

19IO

79

137о

17

2962532402OI

16843129IO2

113

92

7921

"53

74'573774-274-174-674-274-574'274-073'973-773-6

74-10

-II-6-II-6-11-3-11-7— I I'D

-II-6

-11-7

-II-7

-II-8— 12-0

-II-9

-12-4

— 11-69

— 81-6-73-6-56-3-44-0-32-5-14-9- 37+ '9'4+ 22-5+ 35-9+ 49'9+ 61-9

...

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitude

of Group.

Longitude

from

Central

Meridian.

Group 1898.

1886. d

June 22-54923-38524-393

Means

931

8

...

124177

93

...

6

2510

Ч

78138li i

109

0

126-4127-8130-1

128-10

+ 8-7+ 8-8+ 8-6

+ 8-70

0

+ 37-3+ 49'б+ 65'3

...

Group 1899.

June 20-36621-196

. 22-54923-385

Means

о0

о2

...

17о

IO

27

...

о0

оI

I

34о7

17

Ч

42'5

42'743-2

42-8o

-3'5

-З-i-З'З

-З-Зо

-75-6

-4б"4-З5'о

..-.

Group 1900.

June 27-48428-398

Means

June 27-48428-39,829-40630'393

July 1-4132-3913'3994-40454076-4027-5008-5189-420

Means

2

2

...

92no

...

II

I

6i62

62

3437345-0

344-35

+ II-0

+ I I - I

+ 11-05

—40-1— 26-7

...

Group 1901.

о35548i

1291234513111769794222

...

71245446811

IOOO918883792600512442275133...

о52

5i58

7969

777°67

I5

6551

47

56

244364417581

614510468426344332366ЗЗ 1

288

407

ЗОЗ-З302-9303-2ЗОЗЧ

302-5302-3302-0301-7301*1301-4301-2301-3300-9

302-09

-15-1-14-9-15-0

-I5-5

— l6'O

-15-9-15-8-15-8-15-4-4-5-14-9-4'9-4'7

-15-34

— 8о'5-68-8-55'2—42*0

-29'3-IÓ-6

- 3'5+ 94+ 22-2

+ 35-5+49'9+ б3'5+ 751!

...

TAKEN AT THE ROYAL OBSEEVATOEY, QEEENWIOH, IN INDIA, AND IN MAUEITIUS, IN THE YEAE 1886.

AEEAS and HELIOGEAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK — continued.

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitude

of Group.

Moan

Latitude

of Group.

Longitude

fromCentral

Meridian.

Group 1902.

1886. d

June28'398.29-40630-393

July 1-4132-3913-3994-404

Means

18

23

13II

15о

...

52

7793

84954°25

...

718

17

868о

9

837769

525221

12

52

о

Зоо'З299'5299-7

299-2299-0298-9298-5

299-30

+ I8-5+ I8-6+ I8-6

+ i8'7+ i8'4+ I8-2

+ I8-8

+ 18-54

-71-4-58-9

-45'7

-32-6-19-9- 6-6+ 6-2

...

Group 1903.

June 29-40630-393

July 1-413• 2-391

3-3994-40454076-4027-5008-5189-420

Means

5Ч

30

61323IIоо0

...

100

'37

10486

100

85121

l62

I56l

5

...

713

2

0

47

137ооо

5

44130

76

IIil95

I 12

506

76

291-5291-3

290-7291-0291-1291-4286-4287-4288-1285-3284-1

288-94

-i9'9— го-o

— 20'5

— 21-0

— 214

-19-1-19-2-19-4-19-4

»9'3

-19-96

-66-9-54-1

-4П27'9

-144- 0-9+ 7-5+ 2Г5+ 36-8+ 47-5+ 58-3

...

Group 1904.

July 1 3-4724-389

Means

0

о

...

12

66

...

оо

0

855

32

2U-8

211-7

211-75

— lo-i— lO'I

— lO'IO

+ 39'5+ 51-5

...

Group 1905.

July 14-389 4 15 2 9 186-2 -12-4 + 2б'О

Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group.

f > V

Longitude

fromCentral

Meridian.

Group 1906.

1886. d

July 15-46616-38717-12818-55719-20020-40321-42122-40823-21724-40425-19826-388

Means ...

о8

зб114117205102

i8S

1148136

7

...

20

105225713682911950

1016738624325

85...

о

93°72

65107

85103706437Ч

55

42121

194443386474495564449486325>77

346

о

70-970-57I-I71-972'773-374-174-375475'£75-676-4

7347

о

— Ю'2

- 9'9- 94- 9'3- 9-0- 9-2- 9'1- 94- 8-8- 9'3

~ 9 <- 9-6

- 9'37

о

-75-1-6з-2-52-8- 33'2-23'9- 7'3+ 7-0+ 20'3

+ S2'!+ 47-8+ 58-4+ 75'°

...

Group 1907.

July 16-38717-128

Means

оо

...

712

...

оо

о

;i15

62-262-1

62-15

— 18'9-18-8

-18-85

-71-5-6i-8

...

Group 1908.

July 21-42122-40823-21724-40425-19826-3882749228-43329-44830-50831-505

Means

8158

1929363i3920IS13

...

62

102

юзI4I

« S 320422О

205170

117

78

...

13Ч6

ni6181621

1312

Ч

Ч

999<768383

103112

ИЗ108

9490

96

355-535б'4356-3356-5356-5356-7356-8357-0357-3357-3357-3

356-69

- 2-6— 2-7

2-8- З'О- 3'2- 3-2- 3'5- 3-2- 3'2- 3-1- 3'5

-71-6-57-6

Т/ и

- 3I-I— 20'7 '

- 47+ ю-о+ 22-6

+ Зб'4+ 50-4+ 63-6

...

Group 1909.

July 24-40425-198

Means

0

о

...

66

22

...

оо

0

3912

26

356-6358-3

35745

+ 74+ 74

+ 7'40

- 31-0— i8'9

...

88 ABBAS AND HELIOGRAPHIC POSITIONS OF SPOT GROUPS ON THE SUN'S DISK DEDUCED FBOM PHOTOGRAPHS


Date.Greenwich.Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.



Longitudefrom

CentralMeridian.

Group 1910.

1886. d

July 25-19826-38827-49228-43329-44830-50831-505

Aug. 1-4962-2323-S844'3c>55-426

Means ...

72459433°4843

27«S25187

...

67loi249292274261248

199185IOO

11753

...

I6

2г8172623

15Ч201813

22

1 60182196188156139132

113114

8111897

140

о

300-9300-1299'7299'9300-3300-6300-9

300-7300-9300-7301-0300-7

300-53

о

-I3-I-I3-I-13-5-13-2

-I3-I— I3'2

-I3-2

— 13-6

-I3-3

-134-I3-3

-134

-I3-28

о

-76-3-61-3

-47-1-34-5— 2О-6

- 6-3+ 7-2

+ 2О-О

+ 3°'о+ 477+ 57'5+ 72-0

Group 1911.

July 26-38827-4922843329-44830-508

Means

2

1887о

...

83112

452813

...

I

9440

4

485823Ч8

30

332-63357336-8338-03384

336-30

- 0-7

O'O

+ I-I+ 1-7+ 2-1

+ 0-84

- 28-8— 1Г1

+ 2'4

+ I7-I+ 31-5

•••

Group 1912.

July 26-38827-49228-43329-44830-5083i-505

Aug. 1-4964-2323-5844-3055-426

Means ...

721

52

483466

3374!7

90

...

6523037648950138i

349378109433i

...

8IS33261733

184413IO

0

20

73.76236208

258196

189221

834452

i63

297-6298-0299-0299-3299-6300-5

299-9300-2301-3302-7302-1

300-02

+ 16-9+ 17-3+ 16-9+ 16-8+ 16-6+ 16-6

+ 16-5+ 16-7+ 16-5+ 17-0+ 16-8

+ 1678

-бз'8-48-8-354— 21-6

+ 6-8

+ I9"2

+ 29-3+ 48-3+ 59-2+ 734

...


ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.



Longitudefrom

CentralMeridian.

Group 1913.

1886. jAug. 2-232

3-5844-3055-4266-5897-4058-4149-576

10-36411-40012-407

Means

о0

172О

52

3729I IЧ10

о

...

30зб

112

109

285

3231 661049i5428

...

о0

IO

IO

2619178

13Ч0

1 1

30246688

146i689б748i7293

85

Group 1914.

Aug. 3-5844-3055-426

Means

4174

...

274325

...

312

2

6

22

30

H

22

о

212-6

2IO'9

2134

2I5-3

2I5-3

2I5-32I7-2

2I7-5217-6

2l6'7

216-8

215-33

о

- 57- 57- 54- 4'9- 5'5- 54- 4'7- 4-8- 5-0- 5'3- 54

- S-25

0

-58-3-42-1- зо-i- 134+ 2-1

+ 12-8+ 28-1

+ 437+ 54'2+ 67-1+ 80-5

•••

• '

2OO-O

200-5

200-8

200-43

+ 8-6+ 8-4+ 8-4

+ 8-47

- 53-0-43-0-27-9

...

Group 1915.

Aug. 1 1 -40012-4071344514-228I5-33516-39317-46618-41119-24020-406

Means

H29351822

26

23

2312

2

...

6l146167177152152131

f6o21

...

2528

2512

12

1312

1382

15

128

43121

I I I

83

7969553817

84

77-578-979-078-7

• 78-878-879-279-879-979-979-05

- 8-6- 8-7- 8-8- 9'4- 9'5-9-8- 9-6- 9-6- 9-7.- 9-6

- 9-33

- 72-1- 574-437-33-6- 1 8-8

А ' Я4 ö

+ 97+ 22-8

+ 33-9

+ 49'3

...

Group 1916.

Aug. 16-393 О IO О IO 142-8 + 154 + 59'2

TAKEN AT THE ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 89

AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S DISK— continued.


ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group,

Longitude

fromCentral

Meridian.

Group 1917.

1886. ц

Aug. 20-406 0 8 0 6о

344-3

о

+ I-I0

-4б'3

Group 1918.

AUg.,23'50224-49425-228

Means ...

0оо

...

4

l...

Оо0

о

664

5

283-5283-2282-2

282-97

— 14-0-14-1-14-9

-i4'33

-66-2

- 534-447

...

Group 1919.

Aug. 26-38927-57528-41429-641

Means

372

4о

...

23318791

22

...

2бI

2О

7

165из

5212

86

274-3274-6275-1276-7

275-18

— 18-8-19-1— 19-0— 18-9

-18-95

- 37'3-21-3

- 97+ 8-1

...

Group 1920.

Aug. 30-46631-405

Sept. 1-4412-4313-3374-4655-5076-4407-4968-3989-468

10-398

Means

12

24

52

4^

5<5603644

Si23

5

...

59155

419408433476378.343349230in

53

...

!923

39293°30'925233029

13

2б

93150

304245234239194192229188нзН5

196

185-3185-7

185-2185-3185-8187-2189-6191-5192-8193-1I93-5194-0

189-08

+ II-8+ U-8

+ I I - 8+ I I-8+ 12-2+ I 2 - I

+ 12-7+ I3'2

+ 134+ 12-6

+ 12-3+ 12-8

+ 12-38

-72'4-59'S

-46-4- ЗЗ'З-20-7- 4'5+ 1 1 -6+ 25-9+ 41-1+ 53-3+ 67-8+ 80-7

...

Group 1921.

Sept. 3-3374-465

Means

о0

...

"719

...

о0

о

1913

i6

144-8HS'S

145*15

- 8-5- 9-2

- 8-85

-61-7— 46-2

...


ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.

Мщт

Longitudeof Group.

Mean

Latitudeof Group.

Longitudefrom

Central

Meridian.

Group 1922.

1886. dSept. 7-496

8-3989-468

Means ...

5оо

...

3153IO

...

3оо

I

1734

8

2O

о

1744174-017*7

17370

о

— I 1-2

-IPS-II-4

-11-37

u

+ 227+ 34-2+ 47-0

...

Group 1923.

Sept. 9-46810-39811-50312-339I3-396

14-12715-29316-58517-42018-47819-11720-31521-442

Means

о24

41

493944424635484735

3

...

919028733732232933732625723224218845

...'

о32

343322

23

24

24

1930Цзб6

24

S*

255

239228

184172

170

168H214617619290

169

42'344-245-045-045-245-044' 544-445-044'544' 544-144-1

4445

+ 12'3+ I2%7+ 13-0+ 12-8

+ 12-6

+ I 2'4+ 12-8

+ 13-1+ 12-6

+ I3-0

+ 134+ I3-3+ 12-3

+ 12-79

-834— 69-1-53-8-4*7- 28-6- I9'2

- 4'2+ 12-7+ 244+ 37-8+ 46-3+ 6i-8+ 76-6

...

Group 1924.

Sept. 10-39811-50312-33913-39614-1274-293

Means

0

75

1325

7

...

2768

128

1 8714063

...

0

43

' 7134

5

183969987536

56

72-578-777-270-s72-573-6

74-17

— 1Г1- 9-0- 9-7— I2-I

- 117— 11-2

— I0'8o

— 40-8— ZO'I- 10-5- 3-3+ 8-3+ 24-9

...

Group 1925.

Sept. 10*39811-50312-33913-39614-127IS'293

Means

оооо2

1б

...

t0

6o33

109

...

0

о0

о18

2

174о

30

«ï22

68-367-9

68-1б?'971-9

68-82

- 0-4

- 0-3

-"0-8- 0-8

O'O

- 0-46

-45-0- 30-9

- 57+ 37+ гз-2

...

GREENWICH OBSERVATIONS, 1880. 5 M

90 ABBAS AND HELIOGHAPHIC POSITIONS OP SPOT GROUPS ON тнв SUN'S DISK DEDUCED FROM PHOTOGRAPHS

AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S- DISK — continued.

, Date.

Greenwich

Civil Time.

ProjectedArea of

Umbra WholeSpot.

Area forGroup.

Umbra WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group.

Longitudefrom

Central

Meridian.

Group 1926.

1886. „Sept. 13-396

14-127

Ч-29316-5851742018-47819-11720-315

Means ...

9333712

33183913

...

691 08148103358204209103...

6

"9

'118i i2612

15

46637854

190122

136

92

98

о

32-3337354Зб-535-136-535-8зб-б

35-24

о

- 3'5- 3'9- 4'7

= £— 5'9- 5'3- 5'3

— 5-00

о

-41-5- 30-.5- i3'3+ 4'8+ Н'5+ 29'8+ 37-6+ 54'3

...

Group 1927.

Sept. 14-127 о 5 О 2 45'2 - 4-6 — I9"o

Group 1928.

Sept. 22-509^3-32824-30325-12326-10627-104

Means

оо0

о6о

...

6435о8

368

...

О0о0

40

I

32180

523

7

"4

Зоб-8307-2

ЗЮ'5300-2

307-3

307*60

+ 9-3+ 9'3

+ io-о+ 9'5+ 9-3

+ 948

Group 1929.

Sept. 26- 106 5 i8 3 13 221'7 - 4'4

- 6-7+ 4'6

+ 3 I - 5 -+ 40-2+ 54'5

-44-3

Group 1930.

Sept. 30- 1 70

Oct. 1-4532-4153-1914'54i5-481

7

59

28

2428

3z

4168

'1°163177

13

46

i?

\l

64

37459i8897

I39-6

I43-0

146-1146-8

I47-5148-4

- 1 6-8

- 15-2- 147

- 15-4- 157

-72-8

- 52-5- 36-6

- 7-2+ 6-0

Date.Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra WholeSpot.

Mean

Longitude

of Group.

Mean

Latitudeof Group.

Longitude

from

CentralMeridian.


1886. „Oct. 6-273

7-3578-290

9-14310-456

Means

393822

13О

...

49127887538

...

22241612

О

'3

84

79

<5

д9

69

72

о

148-81484148-01 47' 5148-2

146-57

о

- i5'9- I5-5- 15-2- iS'i- Ч-З

- ЧЧб

0

+ 1 6-9+ 30-8+ 42-8+ 53-6+ 7I-5

...

Group 1931.

Oct. 6-273 3 IO 2 6 156-7 - 9-8 + 24-8

Group 1932.

Oct. 6-2737'3578-290

9-I43

Means

52O6О

...

24

M9

...

312

3о

5

184541

5

27

86-287-086787-0

86-73

- 7'5- 7-1- 77- 7-1

- 7'35

-457— 30-6-18-5

6-9

...

Group 1933.

Oct. 11-500 О 53 о 27 57'9 — 10-8 - 5-0

Group 1934.

Oct. 12-158 0 ' 9 о 4 46-2 + з-i - 8-1

TAKEN AT THB ROYAL OBSERVATORY, GREENWICH, IN INDIA, AND IN MAURITIUS, IN THE YEAR 1886. 91

AREAS and HELIOGRAPHIO POSITIONS of SPOT GROUPS on the SUN'S. DISK — continued.

Date.

GreenwichCivil Timo.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group.

Longitudefrom

CentralMeridian.

Group 1935.

1886. aOct. 15-149

16-23017-13018-286

i9'»5320-37621-15722-492

Means

IS- 41

37Ч0

0

00

...

672872909Í2617о

H

...

IO

21

'980

0

о0

7

424915451

ISIIо

19

5б

о

34I-4342-1343-1343-6342-1342-4

345-0

342-81

ь

— 1Г2

-II-5— I2'O

I 1-6

-II-4

— 1ГО

-11-4-11-44

0

-33-3— 18-4- 5-6+ 10-2

+ 2I-4

+ 36-5

+ 67-I

...

Group 1936.

Oct. 23-12124-50725-13026-14627Ч3528-14529-469

Means

о7

IO

101 9'138

...

Ч7i9566

?í96i

...

о897

i i74

7

6288944742

3731

57

185-4184-8i847185-0185-3184-618,5-1

184-99

+ 16-5+ 15-8+ 16-0+ 15-6+ 15-6+ 15-9+ 15-3+ 15-81

—84-2-66-6-58-5-447-3!'3-i8-6- 0-8

...

Group 1937.

Oct. 29-46930-105

Means ...

0

о

...

824

...

0

о

о

I I47

29

254-0252-1

253-05

-6-3- 6-3

— 6-30

+ 68-1+ 74-6

...

Group 1938.

Nov. 12-33213-14814-205

Means ...

ï4о

...

I l17i6

...

I20

I

7

I8

33I-7332-3331-5

33I-83

-14'5-14-7-15-0

-1473

-314— 2О-О

- 6-9

...

Date.1 Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area f orGroup.

Umbra. WholeSpot.


Mean

Latitudeof Group.

Longitude

from

CentralMeridian.

Group 1939.

1886. цNov. 15-280

16-19117-462

Means ...

оО

О

...

I

720

...

0

оо

о

i5

12

б

0

262-9264-5263-9263-77

О

- S'°- 5'5- 4-2

- 4'9°

о

-6i-3-477— 31*6

...

Group 1940.

Nov. 26-348 2 12 I 6 194-6 - 5-8 + 16-2

Group 1941.

Dec. 10*50211-39912-48513-21214-29615-36216-282I7-33418-55219-25020-18221-198

Means

О

421

27377563775759

3ï

...

27IO4128

'À516237241141229517813245

...

о3

13i621

4°3447

, 4557

52

24

3086847°89

199227253231172193

87

43

290-2289-8289-8289-5289-4289-7290-82917293-2293-2293-1284-8

290-43

+ 18-8+ 18-6+ I8-6+ 19-2+ 19-3+ 19-0+ 18-5+ 18-2+ 17-8+ i7'6+ 17-3+ 19-1

+ 18-50

-61-7-50-2-35-9-26-7-12-5+ 1-7+ 15-1+ 29-8+ 47-3+ 56-S+ 68-7+ 73-8

...

Group 1942.

Dec. 12-48513-212

Means ...

2

5

...

3328

...

I3

2

20Ч

18

294-6295-7

295-15

+ 134+ 134

+ 13-40

-31-1

...

Group 1943.

Deo. 22*23823-5Ч24-54825-502

о22

1б

7

5144234133

0

19n4

12615977

130-2125-4

I 2 5 - 5124-9

— lo-i— II 'O

— in-II-5

—67-0-55-0-41-2-29-3

Б M 2

92 AREAS AND HELIOÖRAPHIO POSITIONS OP SPOT GROUPS ON тын SUN'S DISK DEDUCED FROM PHOTOGRAPHS, 1886.

AREAS and HBLIOGRAPHIC POSITIONS of SPOT GROUPS on the SUN'S DISK— concluded.


ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.

Mean

Longitudeof Group.

Mean

Latitudeof Group.

Longitudefrom

CentralMeridian.


1886. „26-18027-15628-22929-477

Means ...

21

1733

...

1 021284217

...

12

92

2

7

566622

29

68

о

125-2

124*21 24- 8

125-64

О

-1 1-6— I2-O

-12-4

-12-9

— 1Г58

0

— 20-2

- 77+ 5'3+ 224)

...

Group 1944.

Dec. 23-514. 24-548

25-50226-18027-15628-22929-47730*15931-522

1887.Jan. ï-

2-1933-244

Means ...

21

277189

I85

74597620

135

...

200388629786939795527439177

89

...

3i254954

IOO

383041

18

138

37

326

3774474875"407269232132

905*

303

108-2108-1108-9109-8109-91 10-2I I I - 51 1 2'2II2-7

II3-61 1 1'9

1 10-64

- 8-7- 87- 8-3- 8-2- 8-2- 8-4- 8-2— 8-0- 8-0

- 8-5- 8-2

- 8-31

-72-2-58-6-45'3-35-6-22-7- 8-1+ 9'6+ 19-2+ 37-8

+ 60-6H-72'8

...

Date.Greenwich

Civil Time.

ProjectedArea of

Umbra. WholeSpot.

Area forGroup.

Umbra. WholeSpot.



Longitudefrom

CentralMeridian.

Group 1945.

1886. „Dec. 24-548

25-50226-180

Means

00

5

22

27SO

...

о0

3

I

I l«429

18

о

I7I-2170-7172-0

171-30

0

+ 12-6

+ I2-O

+ I2-I

+ I2-23

0

+ 4'5+ 16-5+ 26-6

Group 1946.

Dec. 28-22929-47730-15931-522

1887.Jan. ï-

2-1933-2444-226S47I6-1867-1828-161

Means . .

о '10

1727

3619-9'91386

...

2186

119

•57

«57121

945«5822

•5

0

12

«512

'9IO

IO

I I876

10

50102

1 088i

84634930381716

58

40-037-?.37'237'3

37-637'538-137'937-6

37-6

3774

-16-9-i6-5-16-5-16-7

-167-16-5-16-3-IÓ-2-I6-2— 1 6-0-i6'8

— 16-48

-78-3-647-55-8

'-ЗУ*

-154- -7+ 11-9+ 28-1+ 37*2+ 49'9+ 63-2

...


TOTAL PKOJECTED AEEASOP

UMBRAE, WHOLE SPOTS, AND FACULTE

UPON THE SUN'S DISK

FOR EACH DAY,

DEDUCED FROM THE MEASUREMENT

OP

S O L A R P H O T O G R A P H S

IN THE YEAR

1886.

94 TOTAL PROJECTED AREAS OP UMBR^, WHOLE SPOTS, AND FACULTE

TOTAL PROJECTED AREAS OF UMBR-Ж, WHOLE SPOTS, AND FACULTE UPON THE SUN'S DISK FOR EACH DAYIN THE YEAR 1886.

The Projected Area is the area as it is measured on the photograph, uncorrected for the effect of foreshortening, andexpressed in millionths of the Sun's apparent disk.

The Greenwich Civil Time is expressed by the month, day of the month (civil reckoning) and decimal of a day, reckonedfrom Greenwich Mean Midnight.


dJan. ï- г

2 43'4'2

5'56-2

7-1

8'2

9-210-2

II-2

I2'2

I3-3

I4-5

I5-316-517-518-19-520-5Z I ' I

22'2

23-2

24'525'2

26-4

27-5

28-4

29-2

30-331'2

Feb. 1-52-33'34-65'16-57-28-s94

10-2

I I ' Z

12-2

I3-2

I4-2

4-3l6'2

I7'3

18-2I9-3

2O'2

Z I ' I

22-5

Projected Area.

Umbrae.

2427...

1 06120

1332I7

140

I76

2ÓO

238240

206

202272

266

142...

2718

52

О

О

оооо0

о2О

32

67

8i689396

209180162171156160161

845631

538

1826

о

WholeSpots.

294287

715865829

1103n861251

4941534152718871970210919561789...56321491

820

оо0

оо0

но159

2544°34°36737о8768

1004107810421004юоб

9О2

870540322

186563839

"5IO2

FaculsB.

607734

432343611584789828

13291283

5251322

449868566996

269376938320

146394275510271591

416581

444323378636770808

1113

10601213486240765608

"55949

83355473254

.199101


dFeb. 23-2

24425-226-427-528-2

Mar. ï -22'5

344'5

6-2

7'58-494

10-411-512-2

13-6I4-2

I5-2

16-317-4

18-219-520-2

21-2

22'2

23-1

24-5

25-6

26-4

27-1

28-2

2943O'231-4

April ï '4243-64'1

546-47'38-594

10-51 1-612-4

14-115-6

Projected Area.

Umbrie.

Ооо

12

О

1б

ï об

'34153i883344°9404391

246263219269185247по

6118273662

1144320013744133215202167217173

226214262323474718111410373376о0

2O

WholeSpots.

300

369644

275

9654841793211725893146295334725092212

2252

1787

13541078

702

328

103

251

321

537627779851

IIO2II42I27I1287

I43I

4741641413

17712042207219611125968

10196555°9367242

73о0

121

Faculte,

254

87497966

0

358

84418881236

3351022

1092

728

413

139864

636

512

712

I02Ó1550

799179439793746454176337921

1218324590944742878737

935401Z71

11697165723482245790863947184

о454


April 1 6-417-118-119-42O'6

2Г2

22'4

23-5

' 24-525-6

20-6

27428-5

29-5

304

May ï -42434445-66-57'58-29' 5

10-5н'з12-2

I3 ' II4-I

44l6'I

I7'318-419-120-1

21-4

22'2

237,244

25-6

27-528-4

29-5

30'5

SI'S

June г 52 43'i445'56-6

Projected Area.

Umbrffi.

264229

2781

1651241331531 20in142156157I 12

175225

285

280

186391

1 68219

7291

10437unоооо0

I I22

37ю843'S3126182148132122

128

732826

102

2Об

22О

WholeSpots.

1 86214222

30563I

768

951

1046928982938867

116813781294

1220

2431

25 98

2539

27492669

22O7

I940

483

I066

674

28l

226

73ооо0

0

24

99275536655628

662

77868l643737652

315i8i221

677

1227

1481

Faoulro,

383351

о

34-379773756458856454°5584164I2

981472

и 645736go99Z

5971761505991 66

7279957891778432034557443°47363°244382

1054497608683

12071396729

22911 176

418257183422222

732


dJune 7 '4

8494

10-3n'412-413-614-215-516-5i7'518-219-42O'4

2Г2

22'5

234

244

25426-427'528-4294304

July ï '4243444546-47'58-594

10-51 1-6I2 ' IJ3'544i5'5i6'417-118-619-220-421422-423-224425-226-427'528-429-4

Projected Area.

Umbras.

218177163119

54180

оо

I I195462

5°64747°433025IO

42

77117

441341 66431408o794222

0

0

О

О

4О

8зб

114117205

1692ОО

122

IOO

72

7б128

142105

WholeSpots.

15641362926621

339HO

0

o.о

68хб 5203

447483449565598збб2591 6o260fS623

1041

118710981023901721675608336139

оо0

12

8i20

in23874682911

юнni8841834569597810917959

Paoulffi,

298282

733733575489640

оï об12$64568 1199190

0

741799435

'545863201

766

768

982

60

О

210

157512

277412

569672362

.3°54611 16494284460635

0

154654759726

949957

956ибо

1400

UPON THE SUN'S DISK FOR EACH DAY IN THE YEAR 1886. 90

TOTAL PROJECTED AREAS OF Пнвк-ж, WHOLE SPOTS, AND FACULTE— concluded.


d

July 30-53i '5

Aug. 1-52'2

"3-6

546-6748-49-6

11-412-4

14-2i5'316-4I7-518-419-2

21-422-523'524-525-226-427-6284

3°'5314

Sept. 1-4243'34'55'5

Projected Area.

Umbreo.

98121

6l

97456232S2

3729u152429'3518

' 22

. 20

2323

12

2

0

о !оо0

372

4о

12

H

5248í6боЗб

WholeSpots.

892707

548593271317277285323хбб10491

123

174i67

177152

1б2

'З1

о86о28

0

о476

233i87

91

22

5945

419

4SI493378

Faoulœ.

0

. 648

332253

7963644 ï41935476

14635274989227097

185374713614696879489480522197282290

93301217179SS'

103;526322196

0


dSept. 6-4

7'5849' 5

io'4i i ' S12-313-414-1I5 -316-617418-519-120-321422-523-324'325-126-127-128-529-63°'2

I

Oct. 1-52'43-24'55'56-3748-39-1

10-511-5I2 '2

i3'5H'S

Projected Area.

Umbrcol

4439362329485462

105108

5868668648

3оо0

оII0

о0

7

5 ,9

28

2428

475827

13оооо0

WholeSpots.

343379281130294361

-4676376166574286154354SI291

456435

о8

5380

0

32

í1684°i63177182201

l64

8338

539оо

Faculte.

278412

447i i 6

135°636636292818327

92628641

17081312220

О

858

1бз128

гс8

937о

83226

О

О

423121

217320

52б

406360

0

о26

13б

312


dOct. 15-1

l6'2

I7-I

18-3

I9'320-42Г2

22'5

23-I24'525-126-127-128-129'530-131-2

Nov. ri2'5

3444546-17-28-49'3

10-2

1Г1

12-3

I3-I

I4-2

i5 '3l6'2

i7'5i8'519-22O'I

2Г2

22'3

Projected Area.

Umbrse.

154137'5о0

оо0

7IO

' IO191380

o

0

ooooo0

oo0

oI40

o0

oooo0

o

WholeSpots.

66287290962617с

H4

956669696924

о

0

ооо0

ооо0

оо

I I«716

I7

20

0

О

о0

0

Faculte.

106о

Ю7214.юб323290500

1029

18533'323

'43ззб

665°

382

1027

378175179б24

5381633685'9401253

39'95257526321

О

158ззб399205

8i


dNov. 23-3

24'325426-327-228-329430-4

Dec. 1-32'3

3'2

5'2

6-2

7'2

8-59-2

10-511-412-513-214-344'6-3I7-318-6'9'32O'2

21*2

22'2

23^

25*5гб-227'2

28-2

29-5

30'2

31-5

Projected Area.

Umbrae.

оо0

2

О

0

о0

0

ооо0

о0

0

оо4

23

32

377563

775759

3ïо

42

4377

"52О2

777293

WholeSpots.

ооо

12

0

О

оо

0

ооо0

о0

о0

27IO4loi'431б2

3724M412

295178132

455

34464479°938

858630558334

Faculte.

45488408213109

0

4853

8734411443198

оо

38233

83

236

Зоо79

28Í

224348

6914бб3829'

2S646,22

124

О

9374

'74о

96 MBAN ABBAS OP имввл;, WHOLE SPOTS, AND FAOUL-Ж UPON тнв SUN'S DISK ON PHOTOQBAPHS

MEAN AB.BÁS of Пмввд!, WHOLE SPOTS, and FAOUL^J upon the SUN'S DISK, as measured on PHOTOGBAPHStaken at the ROYAL OBSEBVATOBY, GBEENWIOH, at DHHBA DUN, INDIA, and in MAUBITIUS, for eachROTATION of the SUN, from 1885 December 21 to 1887 January 6.

The Mean Areas have been formed by taking the Means of the Areas for each day of observation throughouteach Rotation of the Sun, the Projected Areas being the areas as measured on the photographs and expressed inmillionths of the Sun's apparent disk, and the Areas corrected for foreshortening being expressed (as in formeryears) in millionths of the Sun's visible hemisphere.

The rotations adopted in the following table (which is in continuation of those for the years 1873-1884 and1885 printed in the Greenwich Observations for 1884 and 1885) correspond to the synodic rotation of the Sun,and the commencement of each is defined by the coincidence of the assumed prime meridian with the centralmeridian, the assumed prime meridian being that meridian which passed through the ascending node at meannoon on January ï, 1854, and the assumed period of the Sun's sidereal rotation being 25-38 days. The rotationsadopted in the volumes of Greenwich Observations, 1877 to 1883, correspond on the other hand to the siderealrotation of the Sun, the commencement of each being defined by the coincidence of the assumed prime meridianwith the ascending node. The numeration of the rotations is in continuation of Carrington's series (Observa-tions of Solar Spots made atRedhill by R. G, Carrington, F.R.S.), No. ï being thé rotation commencing 1853,November 9, The dates of commencement of the rotations are given in GBEHNWIOH CIVIL TIME, reckoningfrom midnight.-

No. ofRotation.

431432433434435436437438439440441442443444

Date of Commencement of eachRotation.

1885 December 20-331886 January 16-66

February 13-00March 12-33April 8-63May 5-88June 2-09June 29-29July 26-49August 22-72September 18-98October 16-27November 12-57December 9-89

t

No. of Dayson which

Photographswere taken.

26262827272727282727282727 '27

Mean of Daily Areas.

Projected.

Umbrae.

138

126156no9270854640164о

49

Whole Spots.

951469

10701091916641489575320317

9535

3341

Faculœ.

835576600713574655476401425422316335194254

Corrected for Foreshortening.

Umbra.

904390

108876852

563026ii

3о

32

Whole Spots.

655

766800745459370397-205200

69

272

232

Faculte.

975712717894710756бы499505516377421236324

MEAN AREAS of UMBRAE, WHOLE SPOTS, and FACULJB upon the SUN'S DISK, as measured on PHOTOGBAPHS takenat the ROYAL OBSEBVATOBY, GREENWICH, at DEHBA DUN, INDIA, and in MAURITIUS, for the YEAR 1886.

The Mean Projected Areas are expressed in millionths of the Sun's apparent disk.

The Mean Areas corrected for foreshortening are expressed in millionths of the Sun's visible Hemisphere.

Year.

1886

No. of dayson which

Photographs weretaken.

ЗбЗ

Mean of Daily Areas.

Projected.

Umbrae.

71

Whole Spots.

527

Faoulre.

473

Corrected for Foreshortening.

Umbras.

5°

Whole Spots.

381

Faculte.

579

TAKHN AT тин ROYAL OBSERVATORY, GRBUNWIOH, IN INDIA, AND IN MAURITIUS, IN тнв YEAR 1886. 97

MEAN HELIOGRAPHIO LATITUDE of the SPOTS upon the SUN'S DISK, as measured on PHOTOGRAPHS taken at theROYAL OBSERVATORY, GREENWICH, at DEHRA DUN, INDIA, and in MAURITIUS, for each ROTATION of theSUN, from 1885 December 21 to 1886 December 9.

The numbers given in the accompanying table have been formed as follows :—The Heliographie Latitude of each Spot for each day has been multiplied by its Area (corrected for fore-

shortening), and the sum of the products for Spots North of the Sun's Equator has been divided by the sum of thecorresponding Areas to form Mean Heliographie Latitude of Spotted Area North of Equator ; similarly for SpotsSouth of the Equator. In forming the Mean Heliographie Latitude of entire Spotted Area the algebraic sum ofthe products for Spots North and South of the Equator has been divided by the sum of the Areas ; and for theMean Distance from the Equator for all Spots, the numerical sum of the products, without regard to the sign ofthe latitude, has been similarly divided.

The Mean Areas .have been formed by dividing the sum of the Daily Areas (corrected for foreshortening) bythe number of days of observation for each Rotation of the Sun, and are expressed in millionths of the Sun'svisible hemisphere.

No.of

Rotation.

4314-3243343443543643743843944°441442443444

Date ofCommencement

of each Rotation.

it

1885 Dec. 20-33i886 Jan. 16-66

Feb. 13-00Mar. 1 2-33Apr. 8-63May 5-88June 2 '09June 29-29July 26*49Aug. 2272Sept. 18-98Oct. 16-27Nov. 12-57Dec. 9-89

No. of Days

on which.Photographs

were taken.

262628272727г?28

27

г?28

27

*7*7

Spots NOHTH of the Equator.

Meanof DailyAreas.

'59ЧI I

'54204213

42Ч70

153ZI

» Sо

67

MoanHeliographio

Latitude.

о

12-588-332-13

5 -об7-S88-77

10-49i6-94157912-4912-4716-07

оl8-I2

Spate SOUTH of, the Equator.

Meanof DailyAreas.

496

335754647

541246328382

135534812

2

I65

MeanHeliographie

Latitude.

о

I0'32

1075

9-04

8-80

U-87

10-45

13-90

12-59

877lO'I I

I2'3310-799-179-84

Mean

HeliographieLatitude of entire

Spotted Area.

о

- 4'77— 10-05- 8-88— 6-13- 6-54- i'S7— 1142

- I I ' S I

- 0-41

+ 6-70

- 4'9i+ 4'* 5- 947- 178

MeanDistance from

Equatorof all Spots.

о

10-87IO-66

8-948-o8

10-709-67

13'Si12-75i r io11-8812-371375

9-1712-23

MEAN HHLIOGRAPHIC LATITUDE of SPOTS upon the SUN'S DISK, as measured on the PHOTOGRAPHS taken at theROYAL OBSERVATORY, GREENWICH, at DEHRA DUN, INDIA, and in MAURITIUS, for the YEAR 1886.

УКАЙ.

1886

No. of Dayeon which

Photographswere taken.

363

Spots NOHTH of the Equator.

Mean ofDaily Areas.

76

Mean HeliographieLatitude.

о

9'93

Spots SOUTH of the Equator.

Mean ofDaily Areas.

305

Moan HeliographieLatitude.

0

10-50

Mean Heliographie

Latitude of entireSpotted Area.

о

- 6-42

Mean Distancefrom Equator of

all Spots.

о

10-38

NOTE.—In the computations for forming the corresponding Tables given in the Volumes for 1884 and 1885the latitudes of the Spots were only taken to the nearest whole degree, the next higher whole degree being adoptedwhenever the fractional part of the latitude amounted to or exceeded -5. Thus, under 8°, for example, would beincluded all Spots from 7°'5 to 8°-4, both inclusive ; and the corresponding mean latitude should have been takenas 70i95 instead of 8°. The Mean Heliographie Latitudes, therefore, both for Spots North and Spots South of theEquator, and the Mean Distances from the Equator of all Spots, both for the rotations and for entire years, requirea correction of — o°-o5. The Mean Latitude of the entire Spotted Area requires the following correction :—

_ Oi Mean Area N. — Mean Area S.Mean Area N. + Mean Area S.

These corrections have been applied in computing the Mean Heliographie Latitudes and Mean Distance from theEquator given in the above Tables for 1886.

GBEENWIOH OBSUBBVATIONB, 1886.

G R E E N W I C H

SPECTROSCOPIC A.KD PHOTOGRAPHICR E S U L T S ,

1886.

Documents

1886 Greenwich Spectroscopic and Photographic …...SPECTROSCOPIC AND PHOTOGRAPHIC OBSERVATIONS MADE AT THB ROYAL OBSERVATORY, GREENWICH, 1886. (EXTRACTED FROM THE GREENWICH OBSERVATIONS,