Henyey (Moon)

Named after Louis George Henyey - American astronomer (1910-1970).

Henyey is a lunar impact crater that lies on the far side from the Earth. It is attached at the southern end to the northern rim of the crater Dirichlet. Less than a crater diameter to the northeast is the large crater Mach, and to the northwest lies Mitra. This is a worn and eroded crater that has been partly disintegrated by subsequent impacts. (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.