Büsching is a lunar impact crater that is located in the crater-covered southern highlands. The similar-sized crater Buch is located adjacent to its southwestern rim, and further to the southwest lies Maurolycus. This crater has been eroded by a long history of subsequent impacts, so that the rim has been worn down and the edge rounded. Several small craterlets lie along the edge of the rim, and there is a tiny crater on the interior floor near the east-southeastern rim. (wikipedia entry)