Riccioli (crater)

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Crater characteristics
Coordinates	3.0° S, 74.3° W
Diameter	146 km
Depth	2.3 km
Colongitude	75° at sunrise
Eponym	Giovanni B. Riccioli

Riccioli is a large lunar impact crater located near the western limb of the Moon. It lies just to the northwest of the even larger and more prominent Grimaldi crater. To the southwest are the Hartwig and Schlüter craters that lie on the northeast edge of Montes Cordillera, the ring-shaped range that surrounds Mare Orientale. Due to its location, the Riccioli crater appears strongly foreshortened and is viewed almost from the side.

The Riccioli crater has been heavily worn and eroded, most notably by ejecta from the impact that created the Orientale basin. This debris has created radial features toward the northeast. The ejecta has accumulated in ridges that are traverse to the radial features, particularly in the northeast section of the floor. In the northern half of the interior, the dark covering of lava that previously resurfaced the floor is still visible. A system of rilles named the Rimae Riccioli lies across the interior, and is still visible despite the deposited ejecta.

[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 Riccioli crater.

Riccioli	Latitude	Longitude	Diameter
C	0.6° N	73.0° W	31 km
CA	0.6° N	73.0° W	14 km
F	8.6° S	73.9° W	28 km
G	1.3° S	71.0° W	15 km
H	1.1° N	74.9° W	18 km
K	2.2° S	77.5° W	43 km
U	5.7° S	72.8° W	9 km
Y	3.0° S	73.2° W	7 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. 
• Moore, Patrick (2001). On the Moon. Sterling Publishing Co.. ISBN 0-304-35469-4. 
• Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 0521335000. 
• Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 0-913135-17-8. 
• 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.