Eddie (crater)
 Viking Orbiter 1 mosaic | |
| Planet | Mars |
|---|---|
| Coordinates | 12°18′N 217°54′W / 12.3°N 217.9°W |
| Quadrangle | Elysium |
| Diameter | 89 km |
| Eponym | Lindsay Eddie, a South African astronomer (1845-1913) |
Eddie is a crater in the Elysium quadrangle of Mars. 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]
The InSight Mars lander landed south and west of Eddie crater in 2018.
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Map of Elysium quadrangle. Elysium Mons and Albor Tholus are large volcanoes. Eddie crater is at the left. -
Eddie crater, as seen by CTX camera on MRO -
Central peak of Eddie crater, as seen by HiRISE. -
A topographic map using Mars Orbiter Laser Altimeter (MOLA) data. This map shows the elevation of the rim and central peak of Eddie crater relative to Mars' areoid.
See also
[edit]References
[edit]- ^ http://www.flag.wr.usgs/gov[permanent dead link]
- ^ "Stones, Wind, and Ice: A Guide to Martian Impact Craters".
- ^ Hugh H. Kieffer (1992). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. Retrieved 7 March 2011.
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