Phobos
| Phobos | |
|---|---|
| |
| Phobos in Orbiter 2016 with D3D9 client | |
| Designation | |
| Name | Phobos |
| Reference body | Mars |
| Planetary mean orbits | |
| Epoch | 2006.49555099247 (2006 June 29.87) |
| Semimajor axis (a) | 9373718.185 m |
| Eccentricity (e) | 1.67764797641549×10-2 |
| Inclination (i) | 25.62942457° (0.447317844099851 radian) |
| Longitude of the ascending node (LAN, ☊) | 83.14323972° (1.45112328382648) |
| Longitude of periapsis (ϖ) | 381.5236635° (6.65884410217624 radian) |
| Mean longitude (L) | 401.4323622° (7.0063164440015 radian) |
| Selected physical parameters | |
| Mean radius | 11100 m |
| Mass | 10.8×1015 kg |
| Rotation and precession parameters | |
| Sidereal rotation period | 27553.83426 sec (7.6538 hrs) |
| Sidereal rotation offset | 0.0864220017 sec |
| Obliquity | 0.01884736041 radian (1.079874206°) |
| LAN MJD | 51544.5 (1 January 2000) |
| LAN | 128.6521833° (2.245404188 radians) |
| Note | *Elements given are from Phobos.cfg (2016) |
Phobos (or Mars I) is one of Mars' moons. The other is Deimos.
Phobos is the larger of the two moons and is only 27 kilometres in diameter. This is about as far as a car can travel on the highway in 15 minutes. It is covered with craters, as Earth's moon is.
It is named after the god Phobos in Greek mythology. Its name means "fear". Phobos was discovered by Asaph Hall on 18 August 1877.
Phobos is trapped in tidal drag, with its orbit lowering roughly 1.8 meters per century. In about 50 million years, Phobos will reach the Roche limit, where it is likely to be torn apart. Some fragments will fall on Mars and some will form a planetary ring or rings around Mars.
Phobos in Orbiter
Phobos was introduced to Orbiter with the release of Orbiter 2002.
| Add-on | Source | Version | Author | Type | Release Date | Compatibility | Wiki article |
|---|---|---|---|---|---|---|---|
| Orbiter 2002 | O-F Resources | 020419 | martins | Orbiter Download | 19 April 2002 | Orbiter 2002 | |
| Orbiter 2001 | O-F Resources | 010503 | martins | Orbiter Download | 3 May 2001 | Orbiter 2001 | |
See Also
Phobos in Orbiter 2001 
Phobos in Orbiter 2002 
Phobos as seen by Mars Reconnaissance Orbiter
| edit The Solar System | |
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| Central star |
Sun (Sol) |
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Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune |
| Natural satellites |
Moon - Phobos - Deimos - Io - Europa - Ganymede - Titan - more... |
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