Babbage est un ancien cratère de 144 Km qui est situé près du limbe Nord-ouest de la lune. Il est attaché à la muraille Sud-est de Pythagore (129 Km, 4800 m). Le reste de cratère appelé South (108 Km) est attaché au mur Sud-est du cratère Babbage. La muraille externe de Babbage a été érodée et modifiée par une multitude d'impacts, jusqu'à ce qu’il ne reste  plus qu’un anneau de collines arrondies. La plus notable de ces modifications est le cratère satellite Babbage E, qui recouvre le mur Sud-ouest. Le reste du plancher de Babbage est relativement plat, bien qu'il soit marqué par beaucoup de craterlets minuscules et de monticules. Le cratère le plus notable sur le plancher est le cratère Babbage A, qui se situe dans la partie Sud-est de l'intérieur.

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Babbage is an ancient lunar crater that is located near the northwest limb of the Moon. It is attached to the southeastern rim of the prominent Pythagoras crater. The crater remnant named South intrudes into the southeastern floor of Babbage crater.

The outer rim of Babbage crater has been eroded and modified ny a multitude of subsequent impacts, until all that remains is a ring of rounded hills. The most notable of these modifications is the satellite crater 'Babbage E', which overlays the southwestern rim. The northeast rim of this satellite crater is missing, and it forms a bay on the perimeter of the Babbage crater. The Oenopides crater is another worn formation attached to the southwest edge of this protruberance.

The outer rampart of the Pythagoras crater lies across the floor of Babbage, forming a region of rough terrain in the northwest part of the interior. The remainder of the crater floor is relatively flat, although it is marked by many tiny craterlets. The most notable feature on the floor is the satellite crater 'Babbage A', which lies in the southeast part of the interior. This feature has not been significantly worn, and appears much younger than the remainder of the formation. Just to the west of 'Babbage A' is the smaller 'Babbage C' crater, a bowl-shaped formation.