Biela (Moon)

Named after Wilhelm von Biela - Austrian astronomer (1782-1856).

Biela is a lunar impact crater that is located in the rugged highlands of the southeastern Moon. The crater lies to the east of Rosenberger, to the southeast of the Watt–Steinheil double crater. The rim of this crater is overlaid by a pair of small but notable craters: Biela C across the northeast rim and Biela W along the western inner wall. The satellite crater Biela B is attached to the southwestern outer rim, and ejecta from Biela covers the northwestern part of the interior. (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.