Perel'man is a worn impact crater

Impact crater

In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...

 that lies on the Moon

Moon

The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

's far side. It is located less than one crater diameter to the northwest of the prominent crater Scaliger

Scaliger (crater)

Scaliger is a prominent lunar impact crater that is located in the southern hemisphere on the far side of the Moon. It is attached to the northwest rim of the walled plain Milne, and the shared perimeter has reshaped the outer wall of Scaliger slightly, producing a straightened section along the...

. To the west-southwest is the elongated Bowditch

Bowditch (crater)

Bowditch is a lunar crater that lies on the far side of the Moon, just beyond the eastern limb. It is located on a region of the lunar surface that is brought into view due to libration, but at such times the area is viewed from the edge and so not much detail can be observed...

. Southwest of Perel'man is a small lunar mare

Lunar mare

The lunar maria are large, dark, basaltic plains on Earth's Moon, formed by ancient volcanic eruptions. They were dubbed maria, Latin for "seas", by early astronomers who mistook them for actual seas. They are less reflective than the "highlands" as a result of their iron-rich compositions, and...

 that has been named Lacus Solitudinis

Lacus Solitudinis

Lacus Solitudinis is a small lunar mare on the far side of the Moon. The selenographic coordinates of the lake are 27.8° S, 104.3° E, and it lies within a diameter of 139 km. It forms an arcing feature with the concave side oriented to the northwest...

.

This crater is generally unremarkable. It is worn and eroded with an uneven outer rim. The satellite crater Perel'man E is attached to the eastern exterior. The crater is free of significant overlapping impacts. There is a low ridge near the mid-point of the interior floor.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Perel'man.

Perel'man	Latitude	Longitude	Diameter
E	23.9° S	107.2° E	28 km
S	24.3° S	104.4° E	26 km