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Alphonsus (crater)
Crater on the Moon / From Wikipedia, the free encyclopedia
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Alphonsus is an ancient impact crater on the Moon that dates from the pre-Nectarian era.[1] (Older sources state that it is Nectarian in age. [2]) It is located on the lunar highlands on the eastern end of Mare Nubium, west of the Imbrian Highlands, and slightly overlaps the crater Ptolemaeus to the north. To the southwest is the smaller Alpetragius. The crater name was approved by the IAU in 1935.[3]
Quick Facts Coordinates, Diameter ...
![]() LRO image | |
Coordinates | 13.39°S 2.85°W / -13.39; -2.85 |
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Diameter | 110.54 km |
Depth | 2.7 km |
Colongitude | 4° at sunrise |
Eponym | Alfonso X |
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