Saenger (crater)

Saenger is an ancient lunar impact crater that lies on the far side of the Moon, just beyond the eastern limb. It was named after Austrian rocketry scientist Eugen Sänger.[1] To the west-northwest is the crater Erro, and due north lies Moiseev. To the northeast is Al-Khwarizmi.

Saenger

Apollo 16 Mapping Camera image
Coordinates	4.3°N 102.4°E
Diameter	75 km
Depth	Unknown
Colongitude	254° at sunrise
Eponym	Eugen Sänger

Oblique view of some of Saenger's satellite craters, including P (left of center), Q (center), and R (upper left), with part of Saenger at right. (Apollo 10)

The outer rim of Saenger has been eroded and reshaped by subsequent impacts, leaving the outer wall nearly destroyed to the north and south. The satellite crater Saenger D is adjacent to the interior of the northeastern rim. To the west, Saenger V lies across the northwestern rim, while the crater pair Saenger P and Q lie across and intrude into the southwestern rim. In contrast, the interior floor is relatively flat and featureless, with only tiny craterlets to mark the surface.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Saenger.

Saenger	Latitude	Longitude	Diameter
B	5.6° N	103.1° E	64 km
C	6.1° N	103.9° E	20 km
D	4.9° N	103.0° E	23 km
P	2.7° N	101.7° E	41 km
Q	3.4° N	101.5° E	14 km
R	3.3° N	100.3° E	14 km
V	5.2° N	101.5° E	21 km
X	6.3° N	101.8° E	18 km

References

1. "Saenger (crater)". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

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