Gledhill (crater)
Gledhill (crater)
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 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]
^ "Gazetteer of Planetary Nomenclature | Gledhill". usgs.gov. International Astronomical Union. Retrieved 4 March 2015.
^ http://www.lpi.usra.edu/publications/slidesets/stones/
^ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. Retrieved 7 March 2011.
 | This article about the planet Mars or its moons is a stub. You can help Wikipedia by expanding it. |
 | This article about an extraterrestrial geological feature is a stub. You can help Wikipedia by expanding it. |
Categories:
- Hellas quadrangle
- Impact craters on Mars
- Mars stubs
- Astrogeology stubs
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