Koval'skiy (Moon)

Marian Albertovich; Russian astronomer (1821-1884). (Spelling changed from Koval'skij.)

Koval'skiy is a crater on the far side. It lies about one crater diameter to the southeast of the prominent Sklodowska, and to the north-northwest of Bowditch and Lacus Solitudinis, a small lunar mare. This feature has been heavily damaged by overlapping impacts, leaving it scarcely distinguishable from the irregular lunar terrain. The satellite crater Koval'skiy P lies across the southwestern rim, and Koval'skiy B intrudes into the northeastern 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.