Wiechert is a lunar

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...

 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 is located in the southern region of 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 lies to the southeast of the huge walled plain Schrödinger

Schrödinger (crater)

Schrödinger is a huge lunar impact crater of the form traditionally called a walled plain and is named after Erwin Schrödinger. It is located near the south lunar pole on the far side of the Moon, and can only be viewed from orbit. The smaller crater Ganswindt is attached to the southwestern rim of...

, less than 170 km from the southern pole.

This is a worn and eroded crater formation illuminated only by oblique sunlight. As a result portions of the interior floor lie in deep darkness. The rim is irregular and has an outward break along the northern edge. A small, cup-shaped crater lies along the inner wall of the south-southwestern edge.

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 Wiechert.

Wiechert	Latitude	Longitude	Diameter
A	82.5° S	167.1° E	26 km
E	83.8° S	175.8° E	18 km
J	85.6° S	177.0° W	34 km
P	85.5° S	150.5° E	37 km
U	83.8° S	147.5° E	30 km