Difference between revisions of "Deimos"
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[[Image:Deimos.gif|thumb|200px|right|A [[Mars Global Surveyor]] image of the moon Deimos.]] | [[Image:Deimos.gif|thumb|200px|right|A [[Mars Global Surveyor]] image of the moon Deimos.]] | ||
| + | '''Deimos''' is the smaller and outer moon of Mars (the inner moon is Phobos.) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter. | ||
| − | Deimos is | + | Deimos' orbit is slightly [[eccentricity|eccentric]] (0.0002) with an orbital [[semi-major axis]] ([[apoareion]]) of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref> |
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The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901) | The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901) | ||
| + | ==References== | ||
| + | <references/> | ||
| − | + | {{Subminimal}} | |
[[Category:Natural_Satellites]] | [[Category:Natural_Satellites]] | ||
Revision as of 12:45, 6 October 2007
A Mars Global Surveyor image of the moon Deimos.
Deimos is the smaller and outer moon of Mars (the inner moon is Phobos.) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.
Deimos' orbit is slightly eccentric (0.0002) with an orbital semi-major axis (apoareion) of 23,460km.[1]
The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901)
References
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