Pannekoek (Moon)

Named after Antonie Pannekoek - Dutch astronomer (1873-1960).

Pannekoek is a lunar impact crater that is situated on the far side , and cannot be seen directly from the Earth. The crater lies along the northern edge of the slightly larger Dellinger, and their common border forms an area of uneven terrain. Due north is the huge walled plain Mendeleev. This is a worn and eroded crater, although the perimeter of the rim is still visible. (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.