Eddie (Martian crater)

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Eddie Crater
Elysium map.JPG
Map of Elysium quadrangle. Elysium Mons and Albor Tholus are large volcanoes. Eddie Crater is at the left.
Planet Mars
Coordinates 12°18′N 217°54′W / 12.3°N 217.9°W / 12.3; -217.9Coordinates: 12°18′N 217°54′W / 12.3°N 217.9°W / 12.3; -217.9
Diameter 89 km
Eponym Lindsay Eddie, a South African astronomer (1845-1913)

Eddie Crater is a crater in the Elysium quadrangle of Mars at 12.3° north latitude and 217.9° west longitude. It is 89 km in diameter and was named after Lindsay Eddie, a South African astronomer (1845–1913).[1]

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, as this crater has.[2] The peak is caused by a rebound of the crater floor following the impact. It contains material uplifted from beneath the surface.[3]

See also[edit]


  1. ^ http://www.flag.wr.usgs/gov
  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.