Réaumur (crater)

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Crater characteristics
Coordinates	2.4° S, 0.7° E
Diameter	53 km
Depth	1.3 km
Colongitude	0° at sunrise
Eponym	René de Réaumur

Réaumur is the remains of a lunar crater located on the southern edge of Sinus Medii. It lies to the northwest of the large Hipparchus walled-plain, and east of Flammarion crater. To the south is Gyldén crater, and further to the south-southwest is Ptolemaeus crater.

The rim of Réaumur is heavily eroded, and the northern half consists of little more than a series of low ridges in the mare. The southern rim is notched and indented by small crater impacts. The interior floor is relatively smooth and flat with no significant features.

The broken northern rim intersects a rille designated Rima Oppolzer. This feature is about 110 kilometers long and follows a course from the north-northeast to the south-southwest. To the east of the crater rim is a smaller rille designated Rima Réaumur. Further to the east is the small Seeliger crater.

[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 Réaumur crater.

Réaumur	Latitude	Longitude	Diameter
A	4.3° S	0.2° E	16 km
B	4.2° S	0.9° E	5 km
C	3.4° S	0.2° E	5 km
D	0.2° S	2.8° E	4 km
K	3.8° S	1.0° E	7 km
R	3.5° S	2.1° E	14 km
W	3.2° S	2.8° E	3 km
X	2.9° S	0.6° W	5 km
Y	1.3° S	0.6° E	3 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.
• Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 0-521-81528-2. 
• Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 0-936389-27-3. 
• McDowell, Jonathan (July 15, 2007). Lunar Nomenclature. Jonathan's Space Report. Retrieved on 2007-10-24.
• Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by The Working Group of Commission 17 of the IAU". Space Science Reviews 12: 136. 
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• Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 0521335000. 
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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.