Soddy is an eroded 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...

 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...

 lying on the far side of the Moon

Far side of the Moon

The far side of the Moon is the lunar hemisphere that is permanently turned away, and is not visible from the surface of the Earth. The far hemisphere was first photographed by the Soviet Luna 3 probe in 1959, and was first directly observed by human eyes when the Apollo 8 mission orbited the Moon...

, invisible from the Earth, to the south-southeast of the prominent crater King

King (crater)

King is a prominent lunar impact crater that is located on the far side of the Moon, and can not be viewed directly from Earth. It forms a pair with Ibn Firnas, which is only slightly larger and is attached to the northeast rim of King...

. Material from the ray system

Ray system

A ray system comprises radial streaks of fine ejecta thrown out during the formation of an impact crater, looking a bit like many thin spokes coming from the hub of a wheel. The rays can extend for lengths up to several times the diameter of their originating crater, and are often accompanied by...

 surrounding King covers the sides and interior of Soddy. Less than one crater diameter to the west of Soddy is the smaller Heron

Heron (crater)

Heron is a small lunar impact crater that lies on the far side of the Moon, less than 20 kilometers from the equator. It lies between the slightly larger crater Ctesibius just to the west and Soddy a little farther to the east. Almost directly to the north is the prominent crater King.This...

.

This crater has been heavily worn and eroded, so that only a remnant of a crater depression survives. There are small craterlets along the rim edge to the southwest and southeast. The interior is uneven and almost indistinguishable from the surrounding terrain.

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 Soddy.

Soddy	Latitude	Longitude	Diameter
E	0.8° N	123.4° E	16 km
G	0.5° N	123.5° E	13 km
P	0.4° S	120.9° E	8 km
Q	0.5° S	120.2° E	24 km