Gum (Moon)

Named after Colin Gum - Australian astronomer (1924-1960).

Gum is a lunar crater that is located near the southeastern limb , and is viewed nearly from the side from Earth. It lies along the western edge of the irregular Mare Australe, to the northeast of the crater Hamilton. To the north-northwest is the larger Abel, and to the east-southeast on the far side is Jenner. The interior floor of this crater has been completely resurfaced by lava that has entered through a break in the eastern rim. (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.