Meshcherskiy (Moon)

Named after Ivan Vsevolodovich Meshcherskiy - Russian mathematician (1859-1935).

Meshcherskiy is an impact crater that is located , to the east-northeast of the larger Ostwald. To the east-southeast of Meshchersky is the crater Vetchinkin. This is a moderately worn crater formation, with some erosion along the south and northeast. The interior floor has an area of low-albedo surface in its southern part. (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.