Difference between revisions of "Hydra (moon)"
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|sidereal=38.206 da | |sidereal=38.206 da | ||
|inclination=0.22° | |inclination=0.22° | ||
| − | | | + | |mass=5 * 10<sup>16</sup> kg (8.36681 * 10<sup>-7</sup>% earth) |
|equatorradius =37 km | |equatorradius =37 km | ||
|meantemp=44 K | |meantemp=44 K | ||
Revision as of 00:35, February 10, 2008
| Hydra (moon) | |
|---|---|
 | |
| Name of discoverer | Hubble Space Telescope Team |
| Name origin | mythical 9-headed monster of underworld |
| Orbital characteristics | |
| Primary | Pluto |
| 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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