Open main menu

Shaler is a lunar impact crater that lies on the southeast interior edge of the Montes Cordillera mountain ring that surrounds the immense Mare Orientale formation. It is located near the southwest limb of the Moon on the near side, and so is viewed nearly from on edge from the Earth. Just to the northwest of the crater is the slightly smaller crater Wright.

Shaler crater 4186 h3.jpg
Coordinates32°00′S 85°12′W / 32.0°S 85.2°W / -32.0; -85.2Coordinates: 32°00′S 85°12′W / 32.0°S 85.2°W / -32.0; -85.2
Diameter48 km
Colongitude86° at sunrise
EponymNathaniel S. Shaler

The long, irregular Vallis Bouvard valley begins at the southern rim of Shaler, and winds its way to the south-southeast towards the crater Baade. This is one of several such valleys that radiate away from the southeast edge of the Mare Orientale impact basin, the other two being Vallis Inghirami and Vallis Baade.

Shaler has been affected by its location on the southern edge of the Montes Cordillera, as the floor is rough and irregular, particularly toward the southwest where several small, parallel clefts appear in the surface. The rim is nearly circular, although slightly flattened along the south edge, and the edge remains sharply defined with little appearance of erosion.


  • 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 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.
  • 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.