Thiel (Moon)

Named after Walter Thiel - German rocket builder (1910-1943).

Thiel is a lunar impact crater on the far side. It is located to the south of the larger crater Quetelet, and to the north-northwest of Charlier. This is a sharp-edged, roughly circular crater with a small impact along the outer rim to the north-northeast. It is otherwise free from impact erosion, and the interior is unmarked by significant craters. (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.