Difference between revisions of "Hydra (moon)"
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m (Hydra moved to Hydra (moon): not the only Hydra) |
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Revision as of 13:46, March 16, 2008
| Hydra (moon) | |
|---|---|
 | |
| Name of discoverer | Hubble Space Telescope Team |
| Name origin | mythical 9-headed monster of underworld |
| Orbital characteristics | |
| Primary | Pluto |
| Order from primary | 3 |
| Perihadion | 64,458 km |
| Aphadion | 65,102 km |
| Semi-major axis | 64,780 km |
| Orbital eccentricity | 0.005 |
| Sidereal month | 38.206 da |
| Inclination | 0.22° to Pluto's equator |
| Physical characteristics | |
| Mass | 5 * 1016 kg (8.36681 * 10-7% earth) |
| Equatorial radius | 37 km |
| Mean temperature | 44 K |
Hydra is the third or outermost moon of the dwarf planet Pluto. It was discovered by the Hubble Space Telescope team in June of 2005.
References
- Arnett, Bill. "Pluto." <http://www.nineplanets.org/> Accessed January 22, 2008.
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