Horrocks U (Moon)

Satellite Feature of Horrocks

Named after Jeremiah Horrocks - British astronomer (1619-1641).

Horrocks is a lunar impact crater located entirely within the eroded northeast rim of the much larger walled plain Hipparchus. Gyldén and Saunder lie to the west and east, respectively. The rim is somewhat irregular and polygonal, particularly with an outward protrusion on the eastern rim. (wikipedia entry)