Difference between revisions of "Phobos"

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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.
 
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 [[w:Asaph Hall|Asaph Hall]] on 18 August 1877.
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It is named after the god [[w:Phobos (mythology)|Phobos]] in Greek mythology. Its name means "fear". Phobos was discovered by [[w:Asaph Hall|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 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.

Revision as of 11:00, 1 August 2024

Phobos
DeimosOrbiter2016.png
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.

Orbiter versions and add-ons which include Phobos
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

edit The Solar System
Central star

Sun (Sol)

Planets

Mercury - Venus - Earth - Mars - Jupiter - Saturn - Uranus - Neptune

Natural satellites

Moon - Phobos - Deimos - Io - Europa - Ganymede - Titan - more...

Add-ons

Planets - Dwarf Planets - Small objects - Natural satellites - Alternative star systems

Europa.jpg This natural satellite related article is a stub. You can help Orbiterwiki by expanding it.