Maginus is an ancient 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...

 located in the southern highlands to the southeast of the prominent crater Tycho

Tycho (crater)

Tycho is a prominent lunar impact crater located in the southern lunar highlands, named after the Danish astronomer Tycho Brahe . To the south is the crater Street; to the east is Pictet, and to the north-northeast is Sasserides. The surface around Tycho is replete with craters of various sizes,...

. It is a large formation almost three quarters the diameter of Clavius

Clavius (crater)

Clavius is one of the largest crater formations on the Moon, and it is the third largest crater on the visible near side. It is located in the rugged southern highlands of the Moon, to the south of the prominent ray crater Tycho.- Description :...

, which lies to the southwest. Just to the north of Maginus is the smaller crater Proctor

Proctor (lunar crater)

Proctor is the remnant of a lunar crater that is located to the southeast of the prominent crater Tycho. It lies just to the north of the huge walled plain Maginus. To the north is the crater Saussure and to the northwest, just to the east of Tycho, lies Pictet. Proctor is 52 kilometers in diameter...

, and to the southeast is Deluc

Deluc (crater)

Deluc is a lunar impact crater that lies in the southern highlands of the Moon. It is located to the south-southeast of the crater Maginus, and the huge Clavius. Due east of Deluc is the somewhat larger crater Lilius. It is 47 kilometers in diameter and 3.3 kilometers deep...

.

The rim of Maginus is heavily eroded, with impact-formed incisions, and multiple overlapping craters across the eastern side. The wall is broken through in the southeast by Maginus C, a worn crater. Little remains of the original features that formed the rim of Maginus, and it no longer possesses an outer rampart. The floor is relatively flat, with a pair of low central peaks.

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 Maginus.

Maginus	Latitude	Longitude	Diameter
A	48.8° S	4.4° W	14 km
B	52.4° S	6.2° W	12 km
C	51.7° S	9.4° W	42 km
D	47.9° S	2.2° W	40 km
E	49.0° S	1.4° W	37 km
F	48.9° S	8.2° W	18 km
G	48.0° S	7.6° W	23 km
H	52.5° S	10.0° W	15 km
J	49.9° S	2.8° W	8 km
K	47.4° S	3.9° W	31 km
L	49.2° S	8.9° W	11 km
M	50.4° S	9.3° W	10 km
N	48.5° S	9.0° W	24 km
O	50.6° S	12.6° W	12 km
P	50.7° S	11.8° W	10 km
Q	50.8° S	2.3° W	9 km
R	48.9° S	10.4° W	9 km
S	49.7° S	1.4° W	13 km
T	52.3° S	7.1° W	6 km
U	47.4° S	8.2° W	9 km
V	49.3° S	7.3° W	9 km
W	49.3° S	7.8° W	8 km
X	51.3° S	7.6° W	7 km
Y	51.8° S	9.1° W	7 km
Z	50.2° S	3.6° W	18 km