Gerard (Moon)

Named after Alexander Gerard - Scottish explorer (1792-1839).

Gerard is a lunar crater that lies along the western edge of the Oceanus Procellarum near the northwest limb 's near side. It is located to the north-northwest of the crater von Braun, and northeast of Bunsen. Because of its location, Gerard appears strongly foreshortened when viewed from the Earth, hindering observation. This is a worn and eroded formation with a rim that has been nearly obliterated in some locations and distorted in others. (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.