Sharp est un cratère de 40 Km et profond de 3200 m situé au Nord-ouest  de Promontorium Heraclides (La tête de femme), au delà de la chaîne de Montes Jura. La muraille du cratère est circulaire, entourée par une région montagneuse. Des arêtes sont jointes aux extrémités du nord et du sud de la muraille. Le cratère a une crête centrale au point médian du plancher.

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Sharp is a lunar impact crater located to the west of the Sinus Iridum bay of the Mare Imbrium, beyond the Montes Jura range. To the southwest is the Mairan crater. Due to its location, the Sharp crater appears oblong because of foreshortening. The crater rim is actually circular.
The Sharp crater is surrounded by a rugged region of mounts and rises. Ridges are joined to the north and south ends of the rim. The crater has a low central peak at the mid-point of the floor. Between Sharp and 'Sharp A' is an unnamed sinuous rille. The more distant Rima Sharp is located on the Mare Frigoris to the northwest.