Gregory (Moon)

Named after James Gregory - Scottish astronomer, mathematician (1638-1675).

Gregory is a lunar crater on the far side. It is located to the southeast of the crater Ibn Firnas, and north-northeast of Bečvář. About one crater diameter to the north is the smaller Morozov. This is a worn and eroded crater formation. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.