This small, polygonal crater is conspicuous for its remarkable light-reflecting properties. Its interior is partly dark and partly bright, its walls have an extremely high albedo of 0.16, and a brilliant ray system fans out from the north-west clockwise to the south-south-east.

Photo: António Cidadão. His Home Page of Astrophotography includes stereograms, animations, and "Seven Craters a Week" from his forthcoming photographic lunar atlas.

Inconstant Moon