Polybius (crater)

Polybius (crater)

lunar crater data


caption=Location of crater Polybius.
latitude=22.4
N_or_S=S
longitude=25.6
E_or_W=E
diameter=41 km
depth=2.1 km
colong=335
eponym=Polybius

Polybius is a lunar impact crater in the southeast part of the Moon. It is located to the south-southeast of the larger Catharina crater, in the area framed by the Rupes Altai scarp. Some distance to the northeast is the Mare Nectaris, with the Beaumont and Fracastorius flooded craters.

The crater rim of Polybius appears slightly distended in the northeast, and has a cut through the northern wall. But the wall is otherwise moderately intact with only minor erosion. The interior floor is flat and almost featureless, with no central rise. To the south and east, a ray from the crater Tycho cuts across the bowl-shaped 'Polybius A' and 'Polybius B' craterlets.

atellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Polybius crater.

References


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