Olivier (Moon)

Named after Charles Pollard Olivier - American astronomer (1884-1975).

Olivier is an old, eroded crater that is located in the northern hemisphere on the far side. It lies in a region of dense cratering on all sides. To the east-southeast is a younger but comparably sized crater named Störmer. Southwest is the crater Volterra. (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.