Geological Chronicle
Positioned at the western margin of Oceanus Procellarum near the northwestern limb of the Moon, Repsold is a 108.65-kilometer-wide impact crater that appears heavily foreshortened when viewed from Earth. The formation lies northeast of Galvani and southeast of Volta. Impact damage has disintegrated much of its rim into a rugged region of small craters, leaving the most intact section in the southeast where it borders the adjacent mare.
Basaltic lava flows formed much of the level floor, which is marked by small craters and low ridges in the east. Crustal fractures later developed across the basin, producing Rimae Repsold, a 152-kilometer rille system. The main cleft begins in the northeast, travels southwest through the overlapping satellite crater Repsold G, dividing it into two, and penetrates west-southwest into the floor of Galvani.
The surrounding terrain includes the satellite crater Repsold A, a concentric double-walled feature. The landmark was named by the IAU in 1935 after the German astronomer Johann Georg Repsold.