Bonestell (crater)

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Bonestell (crater)
Bonestell Crater.JPG
Bonestell, as seen by HiRISE. Scale bar is 1000 meters long.
Planet Mars
Coordinates 42°22′N 30°34′W / 42.37°N 30.57°W / 42.37; -30.57Coordinates: 42°22′N 30°34′W / 42.37°N 30.57°W / 42.37; -30.57
Diameter 42.4 km
Eponym Chesley Bonestell, a famous American space artist (1888-1986)

Bonestell is a crater in the Northern hemisphere in the Mare Acidalium quadrangle of Mars, located at 42.37° North and 30.57° West.[1] It is 42.4 km in diameter and was named after Chesley Bonestell, a famous American space artist (1888-1986), whose drawings inspired many young people to study sciences.[2]

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.[3] The peak is caused by a rebound of the crater floor following the impact.[4] If one measures the diameter of a crater, the original depth can be estimated with various ratios. Because of this relationship, researchers have found that many Martian craters contain a great deal of material; much of it is believed to be ice deposited when the climate was different.[5] Sometimes craters expose layers that were buried. Rocks from deep underground are tossed onto the surface. Hence, craters can show us what lies deep under the surface.

See also[edit]


  1. ^
  2. ^ Bonestell. Gazetteer of Planetary Nomenclature, retrieved June 19, 2011
  3. ^
  4. ^ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. Retrieved 7 March 2011.
  5. ^ Garvin, J., et al. 2002. Global geometric properities of martian impact craters. Lunar Planet Sci. 33. Abstract @1255.