Guyot (Moon)

Named after Arnold Henry Guyot - Swiss-born American geographer, geologist (1807-1884).

Guyot is a lunar crater. It is separated from the crater Kostinskiy to the northeast by only a few kilometers of rough terrain. To the west-southwest lies the crater Lobachevskiy and to the east-southeast is Ostwald. This is a worn and eroded crater with an outer rim that has been somewhat distorted in shape due to nearby impacts. (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.