Dyson (Moon)

Named after Sir Frank Watson Dyson - British astronomer (1868-1939).

Dyson is a lunar impact crater that lies on the far side , past the northwest limb. It is located in the northern part of the surface, to the northwest of the crater Coulomb, and east of van't Hoff. The most unusual aspect of this crater is the asymmetry of the inner wall. To the northeast the rim is low and the inner wall is quite narrow, almost non-existent. (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.