Holmes (crater)

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Holmes Crater is an impact crater in the Mare Australe quadrangle of Mars, located at 75.0°S latitude and 293.2°W longitude. It is 122.0  km in diameter and was named after Arthur Holmes, and the name was approved in 1973 by the International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN).[1][2]

Why craters are important

The density of impact craters is used to determine the surface ages of Mars and other solar system bodies.[3] The older the surface, the more craters present. Crater shapes can reveal the presence of ground ice.

See also


  1. "Gazetteer of Planetary Nomenclature | Holmes". usgs.gov. International Astronomical Union. Retrieved 4 March 2015.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. "Google Mars". google.com.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. "Stones, Wind, and Ice: A Guide to Martian Impact Craters". usra.edu.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>