Fischer (Moon)

Named after Emil Hermann Fischer - German chemist (1852-1919) and Hans Fischer - German organic chemist (1881-1945).

Fischer is a lunar crater that lies in the northeastern part of the interior floor of the huge walled plain Mendeleev. This feature is located on the far side relative to the Earth, and can only be viewed from a spacecraft. This crater has a slender, circular rim and an interior that has the same low albedo as the surrounding floor. There is a smaller impact crater within the interior, adjacent to the northwestern inner wall. (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.