Segner (crater)

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Crater characteristics
Coordinates	58.9° S, 48.3° W
Diameter	67 km
Depth	1.3 km
Colongitude	48° at sunrise
Eponym	Johann A. von Segner

Segner is a lunar crater located near the southwest limb of the Moon, to the northeast of the giant Bailly walled-plain. The Zucchius crater is a few kilometers to the south-southwest of the rim, and to the north east lies the unusual Schiller crater formation. The smaller Weigel crater is located to the east.

The crater Segner has a low, worn rim, and is generally much less prominent than the nearby Zucchius crater. The floor is distinguished only by a pair of small craterlets and a slightly undulating surface. There is no indication of a central peak. A low ridge runs to the north from the edge of the northern rim.

[edit] 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 Segner crater.

Segner	Latitude	Longitude	Diameter
A	57.2° S	47.0° W	9 km
B	57.8° S	56.0° W	35 km
C	57.7° S	45.9° W	19 km
E	57.6° S	56.9° W	13 km
G	56.4° S	55.3° W	12 km
H	58.4° S	48.0° W	7 km
K	56.1° S	54.1° W	10 km
L	58.7° S	47.0° W	5 km
M	59.8° S	45.3° W	5 km
N	59.2° S	44.2° W	5 km

[edit] References

• Andersson, L. E.; Whitaker, E. A., (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097. 
• Blue, Jennifer (July 25, 2007). Gazetteer of Planetary Nomenclature. USGS. Retrieved on 2007-08-05.
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• Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes, 6th revision, Dover. ISBN 0-486-20917-2. 
• Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 0-521-62248-4. 
• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 1852331933.