Ideler (Moon)

Named after Christian Ludwig Ideler - German astronomer (1766-1846).

Ideler is a small lunar impact crater in the low southern latitudes. This formation is visible from the Earth, but it appears somewhat foreshortened due to its location. The crater lies just to the northeast of the larger crater Baco, and west-northwest of the prominent Pitiscus. To the west-northwest is Breislak. (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.