Sheepshanks (crater)

Sheepshanks is a small lunar impact crater located near the northern edge of Mare Frigoris. Due south on the opposite shore is the prominent crater Aristoteles while to the north is C. Mayer. Sheepshanks appears somewhat oblong due to foreshortening, but it is actually nearly circular. The inner walls slope down to a ring of material around the inner floor. There is a small craterlet along the southeastern inner wall. The crater is otherwise not particularly eroded by impacts.

Sheepshanks
Location of the lunar crater Sheepshanks.
Coordinates59.2°N 16.9°E / 59.2; 16.9
Diameter25 km
Depth2.0 km
Colongitude17° at sunrise
EponymAnne Sheepshanks
Oblique view from Lunar Orbiter 4

About 30 kilometers to the southeast of the crater rim is the western end of the narrow rille named Rima Sheepshanks. This cleft extends for a distance of about 200 kilometers across the surface of the mare, running to the east-northeast.

The craters are named for Anne Sheepshanks who was a benefactor to the Royal Astronomical Society. Despite being overlooked for membership of the society her contribution is recorded in the naming of these craters.[1]

Satellite craters

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

Sheepshanks Latitude Longitude Diameter
A 60.0° N 19.0° E 7 km
B 60.3° N 21.1° E 5 km
C 57.0° N 18.1° E 11 km

References
  1. 100 years and counting: women in the RAS go from strength to strength, 14 January 2016, RAS, Retrieved 16 March 2017
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  • Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.CS1 maint: ref=harv (link)
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  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.CS1 maint: ref=harv (link)
  • 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.CS1 maint: ref=harv (link)
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  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.CS1 maint: ref=harv (link)
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.CS1 maint: ref=harv (link)
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.CS1 maint: ref=harv (link)
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.CS1 maint: ref=harv (link)
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.CS1 maint: ref=harv (link)
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