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Waxing Gibbous MoonObserving Earth’s Moon from Stephens Memorial Observatory can be challeng-ing due to limitations of the site (neigh-boring trees). In the early evening and nighttime we can usually reliably see the Moon only around its First Quarter to Full phases. The image at left was taken two days after First Quarter in what is known as the Waxing Gibbous phase with the Moon heading towards Full. We have labeled some of the most distinc-tive features here for your reference.
Lunar Seas:
Mare ImbriumMare SerenitatisMare NubiumMare TranquillitatisMare CrisiumMare FecunditatisMare Nectaris
Craters:
PlatoEudoxusArchimedesEratosthenesCopernicusBullialdusWilhelmTycoLongomontanusClavius
Other:
Montes Alpes (mountains)Montes ApenninusApollo 11 Landing Site
Photo Date: September 17, 2010
Mare Imbrium
Mare Nubium
Mare Nectaris
Mare Fecunditatis
Mare Crisium
Mare Tranquillitatis
Mare Serenitatis
<— Plato
<— Montes Alpes
Copernicus —>Mon
tes Ape
nninu
s
Eratosthenes —>
Archimedes —>
Bullialdus —>
Wilhelm —>
Longomontanus —>
<— Clavius
<— Tyco
•Apollo 11
Lunar Photo by James Guilford
The division between night and day is called the terminator. On the face of the waxing Moon, it marks local dawn. —>
<— Eudoxus
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