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Mother’s
Day EditionThe Sky This Month
RASC Recreational Astronomyfor Apr 24th to May 21st
Prepared by: Bryon Czarnik
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Location: M.A.M.A.
Native Full Moon Names: http://americanindian.net/moons.html
• Luna [Gr. Selene] rides her chariot across the night sky, while her brother, Sol [Gr. Helios], rests
🌕 Full 🌹 Moon
5:11 pm
🌑 New Moon
6:45 pm
🌓 First Qtr 9:12 pm
🌗 Last Qtr 6:18 pm
Moon Apogee 404,576 km
2:21 pm
Moon Perigee 369,015 km
5:54 pm🌹
🐇
Flower Moon, Corn Planting Moon, and Milk Moon Tigmiyikvik (Inuit), “time when ducks & geese return from south” Blue Moon (3rd full moon in astro. season with 4 full moons) Hunter’s Moon (S Hemisphere)
Luna and Sol Dates .
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Mother’s
Day Edition
Int’l Astronomy Day
Earth Day
Mothers Day
Native Full Moon Names: http://americanindian.net/moons.html
• Luna [Gr. Selene] rides her chariot across the night sky, while her brother, Sol [Gr. Helios], rests
🌕 Full 🌹 Moon
5:11 pm
🌑 New Moon
6:45 pm
🌓 First Qtr 9:12 pm
🌗 Last Qtr 6:18 pm
Moon Apogee 404,576 km
2:21 pm
Moon Perigee 369,015 km
5:54 pm🌹
🐇
Flower Moon, Corn Planting Moon, and Milk Moon Tigmiyikvik (Inuit), “time when ducks & geese return from south” Blue Moon (3rd full moon in astro. season with 4 full moons) Hunter’s Moon (S Hemisphere)
Sunrise / Sunset (Daylight) Astronomical Twilight (Night)
Apr 24 6:20 am / 8:11 pm (13:51) 4:32 am / 10:00 pm (6:32)
May 21 5:46 am / 8:41 pm (14:55) 3:39 am / 10:49 pm (4:50)
Luna and Sol Dates .
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Mother’s
Day Edition
Int’l Astronomy Day
Earth Day
Mothers Day
Mothers in the Solar System .
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Mother’s
Day Edition
Gaia “Mother Earth”
• Venus [Aphrodite], mother of Cupid and Aeneas; affair with Mars [Ares]
• Juno [Hera], jealous wife separated from Jupiter [Zeus] in asteroid belt
• Jupiter [Zeus]
• Io led a life tortured by jealous Hera. Was an ancestor of Hercules
• Europa kept captive on and populated Crete. Source of name for Europe
• Callisto transformed by Hera with son into Bear: Ursa Major and Ursa Minor
• Leda, mother of Castor and Pollux
• Amalthea, foster mother of Zeus
• Saturn [Chronus]
• Tethys, Titan daughter of Uranus & Gaia, and mother of Oceanus of river gods
• Calypso, sea nymph, kept Odysseus on island, till freed by Zeus
• Dione, Titan mother of Venus [Aphrodite]
• Phoebe, mother of Leto
Mothers in the Solar System .
!3CalypsoDionePhoebe
Tethys
Mother’s
Day Edition
Earth Moon
Fit all 700,000+ asteroids here since only ≅ 4% Moon’s mass!
4 Largest Asteroids
You can fit all the planets in the Solar System back to back into the distance from the Earth to the Moon (about 384,400 km), with room to spare (8,030 km.)
Ref: https://www.universetoday.com/115672/you-could-fit-all-the-planets-between-the-earth-and-the-moon/
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πλανήτης (planēt) or Wanderers .Mother’s
Day Edition
Mother’s
Day Edition
A “Star” for Luna
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• Mercury is low and past its prime for viewing (Apr 24th rises 4:30 am). Superior conjunction on May 21st
• Venus is best observed over the next couple of weeks (-3.9 Mag, 11” size, gibbous)
• Mars visible in Taurus (WNW) after sunset (1.6 Mag, 4” size)
Conjunctions with crescent Moon:
Mars within 5°
May 6th & 7th 9:47pm
Venus (-4 Mag) within 5° but grazing horizon (5°)
Pre-dawn May 2nd
Mother’s
Day Edition
A “Star” for Luna
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• Mercury is low and past its prime for viewing (Apr 24th rises 4:30 am). Superior conjunction on May 21st
• Venus is best observed over the next couple of weeks (-3.9 Mag, 11” size, gibbous)
• Mars visible in Taurus (WNW) after sunset (1.6 Mag, 4” size)
May 19th @ 10:30 pm (Alt. 8°)May 18th @ 10:30 pm (Alt. 8°)
LowLow
Mother’s
Day EditionGas Giants
• Jovian Events • Apr 26th: Io eclipsed 12:46 am and occultation ends 3:54 am;
Europa and shadow transit from 3:33 am • May 11th: Io and its shadow transit Jupiter; starting 2:32 am✓May 18th: Ganymede exits occultation 2:16 am; Io & shadow transit Jupiter, from 3:44 am• Great Red Spot (GRS) transits around 12:30 am on May 3rd and May 15th
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• Uranus and Neptune make poor morning targets • Uranus (+5.9) is lost in sun’s/dawn’s glare. Visibility of May 18th Venus conjunction (≅1°) unlikely
• Neptune (+7.9) rises by 5 am on Apr 24th. By May 21st, it rises 1½ hr earlier
Moon within 5° of Saturn
Apr 25th @ 4:00 am
@ +0.5 Mag, 18” (36”) size, 24° ring tilt
(Also, May 22nd)
• Jupiter and Saturn rise in the SE at 12:30 am and 2:15 am, respectively, on Apr 24th. Both rise 2 hr earlier by the end of May
May 20th @ 4:00 am
Moon within 5-6° of Jupiter@ -2.5 Mag, 45” size
21st
• Moon (6 da old) crosses Beehive May 10th
Lunacy
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9:45 pm 10:45 pm 11:45 pm
Mother’s
Day Edition
Lunacy
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Mother’s
Day Edition
Ref: https://www.theglobeandmail.com/news/national/the-women-on-the-moon/article29128012/
• Only 27 of 1,600+ craters (<2%) are named after women, such as Leavitt, C. Herschel, Sklodovska (Marie Curie)
TC• Young and Old craters on May 13th 🌓 vs May18th 🌕
“Youthful” Tycho “Ancient” Clavius
Age108 M yr from Apollo 16 ray samples. Formed by 8-10 km asteroid during Earth’s Cretaceous Period (Dinosaurs)
4 B yr old, almost as old as our Solar Sys. One of the older craters. Well preserved
Physical Characteristics
Bright ray system extending up to 2,000 km. 86 km wide by 4.8 km deep
2nd largest; 231 km wide by 3.5 km deep;Unique counterclockwise arc of 5 interior craters of diminishing size from Rutherfurd
Astronomer 16th C Danish Tycho Brahe 16th C German supported geocentric model; peer of Galileo
Fame Site of alien monolith (2001: A Space Odyssey) Lunar Admin Base (2001: A Space Odyssey)
Lunacy
https://www.skyandtelescope.com/observing/full-moon-is-tycho-time/!8
Rutherfurd
• Meteors [Gr. ta meteōra: “the celestial phenomena” or “things in heaven above”] —> η (Eta) Aquarids
• Asteroids. [Gr. asteroeides: “star-like”] —> Pallas
• Comets 💫 [Gr. komētēs: “long-haired (star)”] —>
• Zodiacal Light [Gr. zodiakos: “circle of animals”] —> ?
• ISS Passes starting Apr 28th, evening & morning
Space Debris
ISS May 15th, 5am -3.1 ISS May 17th, 5am -3.7 ISS May 17th, 11pm -3.4 ISS May 18th, 10:19pm -4
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Mother’s
Day Edition
www.heavens-above.com
Source: SkySafari
If you can’t wait until 2061 for Halley’s Comet to return, catch the Eta (η) Aquarids (or Orionids in October)
Origin: a stream from 1P/Halley 100’s of years ago• Broad 5 da maximum centered on May 6th
• Less than 40/hr (<1/min) with swift and persistent trains
Low in the pre-dawn sky from 3am to 5am …… radiant rises to 25°by twilight
Victoria Day Fireworks? …Mother’s
Day Edition
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No Moon
!
Yeah!
Brightening
Twilight!
Boo!
Mother’s
Day EditionAsteroids
Sources: NASA, Wikipedia Commons; Heavens Above, Stellarium, https://www.skyandtelescope.com/observing/celestial-objects-to-watch/do-we-have-pieces-of-pallas-on-earth05062015/
• (2) Pallas (8.4 mag) well placed evenings in Coma Berenices• 2nd asteroid discovered (1802) after Ceres. Protoplanetary remnant?
• 3rd most massive @ 7% of mass of asteroid belt (10-30% < Vesta)
• About 500 km diameter
• Pallas meteorites on Earth?
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Mother’s
Day EditionAsteroids
Name a KBO!
Enter by May 10th To name 2007 OR10
“Gonggong", "Holle" or “Vili” (Chinese, European and Nordic mythological figures)
An icy, rocky reddish Kuiper Belt Object (KBO) of an estimated 1,250 km diameter,
making it one of the 10 largest discovered
https://2007or10.name
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Star Struck
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Source: SkySafari for Wed May 8, 2019 10:30pm
Mother’s
Day Edition
⃝
⃝
⃝
⃝
⃝
⃝
⃝⃝
⃝
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Celestial Mothers
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Mother’s
Day Edition
Source: SkySafari
• Jewelry
• Flowers
• Chocolate
Celestial Mother’s Day Presents………Mother’s
Day Edition
• Jewelry
• Flowers
• Chocolate
Diamond Ring Ast Ursa Minor 45’ around Polaris
Berenices Hair Clip G Coma Berenices NGC 4565
Coma Star Cluster OC Coma Berenices Mel 111
Crown C Corona Borealis / Australis
Fairy Ring Ast Cygnus 22’ ring of faint double stars incl Hj1470/HD190466/SAO69335
Ring Nebula PN Lyra M57
Little Gem Nebula PN Sagittarius NGC 6818; visible in morning
Polaris
Hj1470
Fairy Ring
1 DSantiago, Pbase, Fairy Ring 167818492
ref. Birren, Peter, Objects In The Heavens (OITHv6), http://www.birrendesign.com/astro.html
Notes: Ast (Asterism), OC (Open Clustr), G (Galaxy), N (Nebula), PN (Planet Nebula), A (Asteroid), C (Constellation)
Celestial Mother’s Day Presents………Mother’s
Day Edition
• Jewelry
• Flowers
• Chocolate
Diamond Ring Ast Ursa Minor 45’ around Polaris
Berenices Hair Clip G Coma Berenices NGC 4565
Coma Star Cluster OC Coma Berenices Mel 111
Crown C Corona Borealis / Australis
Fairy Ring Ast Cygnus 22’ ring of faint double stars incl Hj1470/HD190466/SAO69335
Ring Nebula PN Lyra M57
Little Gem Nebula PN Sagittarius NGC 6818; visible in morning
Polaris
Hj1470
Fairy Ring
1 DSantiago, Pbase, Fairy Ring 167818492
ref. Birren, Peter, Objects In The Heavens (OITHv6), http://www.birrendesign.com/astro.html
Notes: Ast (Asterism), OC (Open Clustr), G (Galaxy), N (Nebula), PN (Planet Nebula), A (Asteroid), C (Constellation)
Celestial Mother’s Day Presents………Mother’s
Day Edition
Rosette Nebula N/OC
Monoceros Caldwell 49 w OC NGC 2244
Iris Nebula N/OC Cepheus NGC 7023
Caroline’s Rose OC Cassopeia NGC 7789 86 Asteroids named after Flowers and Plants
A Asteroidse.g. Begonia, Petunia, Camelia, Azalea, Orchis, Tulipa
• Jewelry
• Flowers
• Chocolate
Diamond Ring Ast Ursa Minor 45’ around Polaris
Berenices Hair Clip G Coma Berenices NGC 4565
Coma Star Cluster OC Coma Berenices Mel 111
Crown C Corona Borealis / Australis
Fairy Ring Ast Cygnus 22’ ring of faint double stars incl Hj1470/HD190466/SAO69335
Ring Nebula PN Lyra M57
Little Gem Nebula PN Sagittarius NGC 6818; visible in morning
Polaris
Hj1470
Fairy Ring
1 DSantiago, Pbase, Fairy Ring 167818492
ref. Birren, Peter, Objects In The Heavens (OITHv6), http://www.birrendesign.com/astro.html
Notes: Ast (Asterism), OC (Open Clustr), G (Galaxy), N (Nebula), PN (Planet Nebula), A (Asteroid), C (Constellation)
Celestial Mother’s Day Presents………Mother’s
Day Edition
Rosette Nebula N/OC
Monoceros Caldwell 49 w OC NGC 2244
Iris Nebula N/OC Cepheus NGC 7023
Caroline’s Rose OC Cassopeia NGC 7789 86 Asteroids named after Flowers and Plants
A Asteroidse.g. Begonia, Petunia, Camelia, Azalea, Orchis, Tulipa
“Chocolatey” Dust Lanes G Galaxies e.g. Milky Way, Hamburger
(NGC3628), Sombrero (M104)
“Hamburger”
Hj1470
Fairy Ring
DSantiago, Pbase, Fairy Ring 167818492
Fairy Ring aka Chaple’s Arc
Find H1470, a double star a degree NE of 25 Cygni between Ɣ (Gamma/Sadr) and η (Eta) Cygna
H1470 and three similar-looking pairs form an arc less than ½ degree across.
More dimmer stars complete the Fairy Ring (Dim in 70mm refractor at 68x)
Celestial Mother’s Day Presents
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Mother’s
Day Edition
Birren, Peter, Objects In The Heavens (OITHv6),
Doubles from W to E: • SEI 825 (mag 10.0 and 10.8, separation 6.9"), • A 1412 (9.0 and 9.3, 0.8"), • H1470 (7.4 and 9.2, 28.6"), and • PAN 17 (8.3 and 11.4, 16.6”)• The remaining doubles are fainter
Markarian’s Chain taken 2016 by Steve McKinney
M44 Cnc 👓Beehive Cluster or Praesepe. 75 ⭐ s in binos, 350⭐ s in 🔭 . One of closest @ 610 LY. Same origin as Hyades?
M81, M82 UMa 🔭 Bright Bodes Nebula (M81) and thin smudge, Cigar Galaxy. @ 12M LY
M66, M65, NGC 3628 Leo 🔭 Leo Triplet. Spiral galaxies. NGC3628 is Hamburger. M66 brighter. @ 40M LY
Markarian’s Chain Vir 🔭
Curved chain of galaxies in Virgo Cluster. Most appear to have similar motion. Includes two Messier (M84, M86) and half a dozen NGC's.
M104 Vir 🔭 Sombrero edge on galaxy. Prominent dust lane. Large bulge. +8.2 Mag. @28M LY
Melotte 111 Com 👓4.5° Coma Star Cluster @ 400M yr old; 288 LY, 3rd closest after Ursa Major Cluster and Hyades
Cor Caroli CVen 🔭 Watch out Albireo. Double @ 19” separation, 115 LY
Gobs of Globulars
Multiple 🔭
Globular clusters rising over the evening into morning - e.g. M3 (Canes Venatici), M5 (Serpens), M13 (Hercules), Ophicius, …
Leo Triplet taken May, 2013 by Steve McKinney
Star Struck
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Mother’s
Day Edition
Markarian’s Chain taken 2016 by Steve McKinney
Star Struck
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Mother’s
Day Edition
Powehi, “the adorned fathomless dark creation”
M87’s Black Hole
Mother’s
Day Edition
In the Eyepiece: a Hamburger, Sombrero & Chain
Markarian’s Chain, M87 in Virgo ClusterBy Michael Vlasov, DeepSkyWatch.com on Apr 21-22, 2012, 0:300Location and conditions: Borot Lutz, Negev desert, Israel, ~6.9 NELM.Instrument: Skywatcher BKP250 10" F/5 Newtonian, Hyperion 31mm eyepiece, 39X, 1.86° TFOV.
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www.deepskywatch.com/index.html
bristolweather.org.uk/galaxies/Galaxy viewing with binoculars.php
ChiGY
c56
⃝
a ⭐’s Trek
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• Wolf 359, a red dwarf in Leo @ 13+ Mag and one of nearest ⭐’s @ 8 LY
• Huge proper motion of 5”/yr or ¼ width of Full Moon in a lifetime
• Star Trek, Battle of Wolf 359, 2367 AD• The Borg, human cyborgs, defeated the Federation, but Captain
Picard & the Enterprise defeated The Borg and saved Earth 😅
Mother’s
Day Edition
Occultations
https://occultations.org/observing/occultation-predictions/ (incl RASC handbook predictions)
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Mother’s
Day Edition
Space Missions
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Mother’s
Day Edition
By Olaf Frohn - http://www.planetary.org/multimedia/space-images/charts/whats-up-in-the-solar-system-frohn.html
OSIRIS-Rex and Bennu
Space Missions
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Mother’s
Day Edition
JAXA’s Hayabasu II and RyuguSpace Missions
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Mother’s
Day Edition
SpaceIL’s Beresheet LanderSpace Missions
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Mother’s
Day Edition
• Starman and the Tesla Roadster are over 2 AU from Earth
• Orbital period around Sun is 557 days
• Exceeded its 36K mi warranty over 14K times
• Fuel economy of 0.06 l/100 km assuming 126K gal of fuel
• Listened to Bowie’s “Space Oddity” over 100K times
Location on May 10th, 2019
New Ride for Mom?
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Sources: https://www.whereisroadster.com
Mother’s
Day Edition
Where is “Starman”?
Mother’s
Day Edition
Space Launches
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Mother’s
Day Edition• Apr 30 CRS-17: Falcon 9 launch of 17th Dragon supply cargo to ISS
• May 3/4 tbd STP-27RD: Rocket Lab’s (US) Electron rocket will launch 3 satellites from New Zealand for the US military to demo commercial spacecraft capabilities (Army), avionics+software defined radio & space situational awareness (Air Force) and tracking of space debris (Air Force)
• NET May 10 DirecTV 16 & Eutelsat 7C: Ariane 5 double satellite launch of geostationary broadcast and TV communications satellites - DirecTV (USA) and Eutelsat (Africa, Europe, the Middle East and Turkey)
• May 13 tbd Glonass M: Soyuz rocket launch of a Russian Glonass M navigation satellite
• NET May 16 Radarsat C1, C2 & C3: Falcon-9 rocket from Vandenberg AFB will launch Canadian Radarsats to provide weather, disaster management & ecosystem monitoring
• NET May 27 Amos 17: Falcon 9 launch of Israeli (SpaceIL) satellite to provide high-throughput broadband connectivity and other comm services over Africa, the Middle East and Europe
• May 29 Yamal 601: Proton launch of Russian communications satellite
• May tbd RISAT 2B: Polar Satellite Launch Vehicle (PSLV) launch by India of Earth radar imaging satellite
• NET May (likely July) Chandrayaan-2: India’s 2nd robotic Moon mission launched by GSLV Mk II. Consists of Orbiter, Lander & Rover (1st mission was orbital from Oct 2008 - Aug 2009)
• Goals: soft-land & operate rover; study lunar topography, mineralogy, elemental abundance, the lunar exosphere, and signatures of hydroxyl and water ice
Space Launches
!22NET: No Earlier Than
Sky at a Glance
🌕 Full 🌹 Moon 5:11 pm
🌑 New 6:45 pm
Tigmiyikvik (Inuit), “time when ducks & geese returned from south” Blue Moon (3rd full moon in season with 4 full moons) Hunter’s Moon (S Hemisphere)
🌓 1st Qtr 9:12 pm
Moon - Saturn
Legend: Morning events are in Italics Native Full Moon Names: http://americanindian.net/
🌗Last Qtr 6:18 pm
Moon Apogee 2:21 pm Moon - Venus
💫 Eta Aquarids 4:00 am
Moon - Mars Moon - Beehive
Moon Perigee 5:54 pm
Moon - Jupiter Moon - Saturn
Jupiter Io Transit Int’l Astronomy Day
Jupiter Io Eur Transit
Jupiter Io Gan Transit
Celsius d. 1744 (42yr)
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🌹
🐇
Jan Oort b. 1900
Otto Von Struve b. 1819
Williamina Fleming d. 1911 (54)
Hubble Launched 1990
Venera 5 Lands On Venus 1969
Star Wars Day “may the 4th …”
Mother’s
Day Edition
Earth Day
Mothers Day
• RASC Observer’s Handbook 2019
• Astronomy, SkyNews: Mags, Web Sites
• SkySafari, Stellarium: Planetarium S/W
• www.aerith.net Comet Information + www.heavens-above.com ISS, Satellites, Comets, Asteroids, etc.
• Birren, Peter, Objects In The Heavens (OITHv5), http://www.birrendesign.com/astro.html in PDF or “pocket” book. Excellent! Objects to 10th Mag by constellation, plus handy ref lists, moon phases
• http://www.messier.seds.org/xtra/marathon/marathon.html Machholz, Don, The Observing Guide to the Messier Marathon, New York: Cambridge Univ Press, 2002
• https://occultations.org/observing/occultation-predictions/ Lunar and Asteroid Occultations (incl. RASC data)
• http://www.planetary.org/multimedia/space-images/charts/whats-up-in-the-solar-system-frohn.html by Olaf Frohn, Map of Space Missions
• https://www.spaceflightinsider.com/launch-schedule/ https://spaceflightnow.com/launch-schedule/ https://www.spacelaunchschedule.com/launch-schedule/ Space Launches and Missions
• https://www.calsky.com/cs.cgi? Calculation of various astro/space events (e.g. GRS) for selected time periods
• http://www.skymaps.com for monthly star chart, observing highlights & visual/bino/telescope targets
• www.deepskywatch.com/index.html Sketches + bristolweather.org.uk/galaxies/Galaxy viewing with binoculars.php
References
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Mother’s
Day Edition
Mother’s
Day Edition
Objects in the Heavens
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Mother’s
Day Edition
Objects in the Heavens
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Mother’s
Day EditionHappy Mother’s Day
Clear Skies!