Geological Chronicle
Kosberg is a small lunar impact crater that is located near the middle of a huge walled plain named Gagarin, which lies on the far side of the Moon and cannot be viewed directly from the Earth. The formation spans an official diameter of 14.63 kilometers.
Kosberg is a flat-bottomed crater with a circular outer rim, simple sloping inner walls, and a somewhat hummocky interior floor. It is recorded in the IAU Gazetteer under quadrangle LAC-102.