Santbech 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...

 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 is located to the southeast of Mare Nectaris

Mare Nectaris

The Sea of Nectar is a small lunar mare or sea located between the Sea of Tranquillity and the Sea of Fecundity . Montes Pyrenaeus borders the mare to the west and the large crater near the south center of the mare is known as Rosse...

. It lies south-southwest of the prominent crater Colombo

Colombo (crater)

Colombo is a lunar impact crater that lies on the strip of rough continental terrain between Mare Fecunditatis to the east and Mare Nectaris in the west. It is located to the south of the crater Goclenius, and northwest of Cook....

. About one crater diameter to the east-northeast is the smaller Monge

Monge (crater)

Monge is a lunar crater that lies along the southwestern edge of the Mare Fecunditatis. The outer rim is somewhat irregular in shape, with an outward bulge to the east and smaller bulges to the north and northwest. The interior floor is somewhat irregular in the eastern half, and there are...

. The terrain around the crater, although rugged in places, has been flooded by lava

Lava

Lava refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. When first erupted from a volcanic vent, lava is a liquid at...

 and so has a low albedo

Albedo

Albedo , or reflection coefficient, is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it...

 and a relatively flat surface. It was named after the 16th-century Dutch mathematician and astronomer Daniel Santbech Noviomagus. It is from the Pre-Imbrian

Lunar geologic timescale

The lunar geological timescale divides the history of Earth's Moon into five generally recognized periods: the Copernican, Eratosthenian, Imbrian , Nectarian, and Pre-Nectarian...

 period, 4.55 to 3.85 billion years ago.

The outer rim of this crater stands above the surrounding terrain, with an irregular outer rampart. The rim perimeter is somewhat irregular, and has been disturbed in several locations by subsequent impacts. There are small craters along the eastern and northwestern rim, and an asymmetrical formation along the southern inner wall. The northern rim is uneven, with a diagonal gouge running to the southeast. Much of the interior floor is level and nearly featureless, with a small central peak offset to the north-northeast of the mid-point.

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 Santbech.

Santbech	Latitude	Longitude	Diameter
A	24.2° S	42.3° E	25 km
B	24.7° S	41.6° E	16 km
C	22.3° S	39.5° E	18 km
D	21.0° S	45.2° E	8 km
E	22.3° S	44.8° E	12 km
F	25.5° S	41.9° E	13 km
G	22.9° S	44.5° E	5 km
H	20.4° S	42.8° E	10 km
J	19.7° S	43.3° E	14 km
K	19.1° S	43.1° E	10 km
L	21.3° S	39.4° E	8 km
M	20.4° S	39.3° E	13 km
N	20.8° S	39.6° E	13 km
P	21.3° S	40.0° E	9 km
Q	23.2° S	39.0° E	12 km
R	23.3° S	38.9° E	5 km
S	23.5° S	39.1° E	10 km
T	24.1° S	38.1° E	5 km
U	24.0° S	38.8° E	9 km
V	24.6° S	39.3° E	7 km
W	24.3° S	40.7° E	13 km
X	25.2° S	42.5° E	7 km
Y	25.2° S	42.9° E	8 km
Z	25.8° S	43.1° E	5 km