Brackett (Moon)

Named after Frederick Sumner Brackett - American physicist (1896-1988).

Brackett is a small lunar impact crater that lies near the southeast edge of Mare Serenitatis. This crater is best observed under oblique illumination, as it is otherwise difficult to find. The southern rim is almost contacting a rille system named the Rimae Plinius. (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.