Brackett is a small lunar impact crater that lies near the southeast edge of Mare Serenitatis.

The crater is named after American physicist Frederick Sumner Brackett.

[1] The crater has been covered by lava flow, leaving only a ring-shaped trace in the surrounding lunar mare.

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.