Guericke (Moon)

Named after Otto von Guericke - German physicist, engineer, naturalist (1602-1686).

Guericke is the remnant of a lunar crater at the north part of the Mare Nubium. To the north-northwest lies the large Fra Mauro crater, along with the co-joined craters Parry and Bonpland. To the east are the craters Kundt and Davy. The surviving rim has been worn, battered, and partly submerged by the basaltic lava that covers the floor. (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.