Diophantus (crater)

Diophantus is a lunar impact crater that lies in the southwestern part of the Mare Imbrium, named after the ancient Greek mathematician Diophantus. It forms a pair with the larger crater Delisle to the north, has a wide inner wall and a low central rise. To the north of Diophantus is the sinuous rille designated Rima Diophantus, named after the crater. Diophantus C lies near the exterior of the southwest wall.

Diophantus is a crater of Eratosthenian age.