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Gledhill (crater)

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Gledhill (crater)


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Gledhill Crater

Wikigledhill.jpg
Gledhill Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter).

Planet
Mars
Region
Hellas quadrangle
Coordinates
53°30′S 97°00′E / 53.5°S 97°E / -53.5; 97Coordinates: 53°30′S 97°00′E / 53.5°S 97°E / -53.5; 97
Diameter
82.5 km
Eponym
Joseph Gledhill

Gledhill is an impact crater in the Hellas quadrangle of Mars, located at 53.5°S latitude and 273.0°W longitude. It is 82.5  km in diameter and was named after Joseph Gledhill, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).[1]


Nearby named craters include Krishtofovich to the northeast, the large Secchi to the east-southeast and Spallanzani to the south. West of Gledhill are Mad Vallis and also Zea Dorsa to the northwest.


Impact craters generally have a rim with ejecta around them, in contrast volcanic craters usually do not have a rim or ejecta deposits. As craters get larger (greater than 10 km in diameter) they usually have a central peak.[2] The peak is caused by a rebound of the crater floor following the impact.[3] Gledhill Crater shows a central peak in a picture on this page.



See also[edit]


  • Climate of Mars

  • Geology of Mars

  • Impact event

  • Impact crater

  • List of craters on Mars

  • Ore resources on Mars

  • Planetary nomenclature


References[edit]




  1. ^ "Gazetteer of Planetary Nomenclature | Gledhill". usgs.gov. International Astronomical Union. Retrieved 4 March 2015. 


  2. ^ http://www.lpi.usra.edu/publications/slidesets/stones/


  3. ^ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. Retrieved 7 March 2011. 










Retrieved from "https://en.wikipedia.org/w/index.php?title=Gledhill_(crater)&oldid=847743077"





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