Sampson (Moon)

Named after Ralph Allen Sampson - Irish-born British astronomer, mathematician (1866-1939).

Sampson is a tiny lunar impact crater located near the central part of the Mare Imbrium. To the northeast is the crater Landsteiner, and to the southeast lies Timocharis. East of this crater is the Dorsum Grabau, a wrinkle ridge in the mare. (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.