Drebbel (Moon)

Named after Cornelius Drebbel - Dutch inventor (1572-1634).

Further to the northeast is the Lacus Excellentiae and the small crater Clausius. Along this arc of the inner wall is a single terrace where the material has slumped downwards. The west and northwest sides have accumulations along the base where loose material has slumped to 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.