Moretus (Moon)

Named after Moret, Theodore Moretus - Belgian mathematician (1602-1667).

Moretus is a lunar impact crater located in the heavily cratered highland region near the south pole. South of it is the crater Short, while to the north is Cysatus. To the northwest lies Gruemberger, and Curtius is located to the northeast. Due to the location near the lunar limb, the crater appears oblong because of foreshortening. (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.