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1 Satellite craters  





2 References  














Geminus (crater)






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Coordinates: 34°25N 56°40E / 34.42°N 56.66°E / 34.42; 56.66
 

From Wikipedia, the free encyclopedia
 


Geminus
LRO mosaic
Coordinates34°25′N 56°40′E / 34.42°N 56.66°E / 34.42; 56.66
Diameter81.98 km (50.94 mi)
Depth5.4 km
Colongitude304° at sunrise
EponymGeminus
Oblique view from Apollo 16

Geminus is a lunar impact crater that is located near the northeast limb of the visible Moon. In this position the crater appears oval in shape due to foreshortening, but it is actually more nearly circular in form. It was named by the IAU in 1935.[1]

The circular rim of Geminus contain a number of outward notches, particularly to the north and east. The crater ejecta is still visible in the rough surroundings beyond the rim, but any rays deposited during the impact have long since been worn away by space weathering. The inner wall is wide and extensively terraced, although these features are now somewhat muted due to impact erosion. There are no notable impacts on the interior floor, but there is a long, slender central ridge located at the midpoint and a pair of readily observed clefts.

Notable nearby craters include Messala to the northeast, Bernoulli due east, and Burckhardt and Cleomedes to the south.

Satellite craters[edit]

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

Geminus Latitude Longitude Diameter
A 31.5° N 51.8° E 15 km
B 34.2° N 52.3° E 10 km
C 33.9° N 58.7° E 16 km
D 30.6° N 47.4° E 16 km
E 33.5° N 48.5° E 67 km
F 32.1° N 51.1° E 22 km
G 30.8° N 48.6° E 14 km
H 31.6° N 48.9° E 15 km
M 31.9° N 48.5° E 11 km
N 31.4° N 47.7° E 24 km
W 34.3° N 47.4° E km
Z 30.7° N 46.7° E 26 km

References[edit]

  1. ^ "Geminus". Gazetteer of Planetary Nomenclature. IAU/NASA/USGS. Retrieved 28 April 2024.
  • Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.
  • Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
  • Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1.
  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 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 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. S2CID 122125855.
  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=Geminus_(crater)&oldid=1221270584"

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    This page was last edited on 28 April 2024, at 22:32 (UTC).

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