Anders is a worn lunar impact crater that is located in the southern hemisphere on the far side. It lies just to the southeast of the outer rim of the huge walled basin named Apollo. To the south-southeast is the crater Leavitt. The oval-shaped Anders G intrudes slightly into the southeast rim. (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.