Wikipedia
Koval'skiy (crater)
Koval'skiy is a crater on the far side of the Moon. 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. A small crater also lies across the northwestern rim. The interior is irregular and marked by several small craterlets.
Koval'skiy K lies at the midpoint of a high- albedo patch. A single faint ray extends to the southeast directly across Koval'sky.