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(from wikipedia)

 

Eudoxus is a prominent lunar impact crater (dia. 67 Km, dept. 3.4 Km) that lies to the east of the northern tip of the Montes Caucasus range. It is located to the south of the prominent crater Aristoteles in the northern regions of the visible Moon. 

The rim of Eudoxus has a series of terraces on the interior wall, and slightly worn ramparts about the exterior. It lacks a single central peak, but has a cluster of low hills about the midpoint of the floor. The remainder of the interior floor is relatively level.

 

Aristoteles is a lunar impact crater (dia. 87 Km, dept. 3.3 Km) that lies near the southern edge of the Mare Frigoris and to the east of the Montes Alpes mountain range. To the south of Aristoteles lies the slightly smaller crater Eudoxus and these two form a distinctive pair for a telescope observer. An arc of mountains between these craters bends to the west before joining the walls. 

Observers have noted the crater wall of Aristoteles is slightly distorted into a rounded hexagon shape. The inner walls are wide and finely terraced. The outer ramparts display a generally radial structure of hillocks through the extensive blanket of ejecta. The crater floor is uneven and covered in hilly ripples. Aristoteles does possess small central peaks but they are somewhat offset to the south. The interior floor appears to have been filled with a layer of material partially burying these projections.

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