Yamamoto (Moon)

Named after Issei Yamamoto - Japanese astronomer (1889-1959).

Yamamoto is a damaged lunar crater that is located to the north of the large walled plain D'Alembert. To the north-northeast is the crater Avogadro. This feature lies on the northern hemisphere 's far side. Several parts of the crater rim are overlain by subsequent impacts, particularly along the northeastern section which has been almost completely obliterated. (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.