Chalonge (Moon)

Named after Daniel Chalonge - French astronomer (1895-1977).

Chalonge is a lunar crater on the far side. It lies to the southwest of the larger crater Lewis, in the outer skirt of ejecta that surrounds the Mare Orientale impact basin. To the southeast are the Montes Cordillera, a ring of mountains that encircle the Mare Orientale formation. This is a circular crater with a sharp-edged, outer rim that is not appreciably eroded. (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.