Sömmering is the lava-flooded remains of a lunar impact crater on the eastern edge of the Mare Insularum. It was named after German doctor Samuel Thomas von Sömmerring.[1] To the southeast is the crater Mösting, and north of Sömmering lies a similar flooded crater designated Schröter. A rille designated Rima Schröter runs from the southeast of Schröter towards the east of Sömmering's outer rim.

Sömmering
Coordinates0°06′N 7°30′W / 0.1°N 7.5°W / 0.1; -7.5
Diameter28 km
Depth1.0 km
Colongitude8° at sunrise
EponymSamuel Thomas von Sömmerring
The crater area in selenochromatic Image (Si) with some landmarks (yellow/normal, red/pyroclastic). More infos here : https://www.gawh.it/main/selenocromatica
Oblique view from Apollo 16, facing north.

The western rim of this crater forms a slender arcing rise on the lunar mare, with a wide gap to the south and a narrow gap in the north. The eastern rim is much thicker in girth, and resembles a curved ridge. The interior floor is level and nearly featureless. The open southern end of this crater overlaps the lunar equator.

Satellite craters

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Sömmering crater and its satellite craters taken from Earth in 2012 at the University of Hertfordshire's Bayfordbury Observatory with the telescopes Meade LX200 14" and Lumenera Skynyx 2-1

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

Sömmering Latitude Longitude Diameter
A 1.1° N 11.1° W 3 km
P 2.2° N 10.3° W 6 km
R 1.9° N 9.8° W 17 km

References

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