Eddie (crater)
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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°WCoordinates: 12°18′N 217°54′W / 12.3°N 217.9°W |
| 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.[2] The peak is caused by a rebound of the crater floor following the impact.[3]
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Eddie Crater, as seen by CTX camera (on Mars Reconnaissance Orbiter).
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Eddie Crater central peak in Elysium quadrangle, as seen by HiRISE.
See also
References
- ↑ http://www.flag.wr.usgs/gov
- ↑ 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.
