Tags: Crater.
Keldysh is a lunar impact crater that is located in the northeastern part of the Moon at the eastern rim of the Mare Frigoris. It lies due north of the prominent crater Atlas and to the northeast of the notable Hercules.The crater rim is generally circular although it gives the appearance of a slight eastward bulge. The rim edge is sharp and displays little appearance of wear with only a tiny craterlet along the eastern edge.
