Menelaus (Moon)

Named after Of Alexandria Menelaus - Greek geometer, astronomer (c. A.D. 98).

Menelaus is a young lunar impact crater located on the southern shore of Mare Serenitatis near the eastern end of the Montes Hæmus mountain range. To the southwest is the small crater Auwers, and to the southwest is the even smaller Daubrée. To the northeast is a faint rille system named the Rimae Menelaus. (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.