Manilius (Moon)
Named after Marcus Manilius - Roman writer (unkn-c. 50 B.C.).
Manilius is a lunar impact crater on the northeast edge of Mare Vaporum. (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.
Manilius
14.45° N 9.07° E