Deimos (seestematic designation: Maurs II)[8] is the smawer an ootermair o the twa naitural satellites o the planet Mars wi a mean radius o 6.2 km,[2] the ither bein Phobos.

Deimos
Deimos
An enhanced-colour image o Deimos (MRO, 21 Februar 2009).
Image: NASA/JPL-Caltech/Varsity o Arizona
Discovery
Discovered biAsaph Hall
Discovery date12 August 1877
Designations
AdjectivesDeimosian
Orbital chairactereestics
Epoch 2012-Sep-21
(JD 2456191.5)
Periapsis23455.5 km[1]
Apoapsis23470.9 km[1]
23463.2 km[2]
Eccentricity0.00033[2]
1.263 d[2]
(30.312 h)
1.3513 km/s[3]
Inclination0.93° (tae Maurs's equator)
1.791° (tae the local Laplace plane)[2]
27.58° (to the ecliptic)
Satellite oMaurs
Pheesical chairacteristics
Dimensions15 × 12.2 × 11 km[4]
Mean radius
6.2 ± 0.18 km[5]
(0.97316 mEarths)
495.1548 km2[6]
(97.0755 µEarths)
Vollum999.78 km3[7]
(92.2979 nEarths)
Mass1.4762×1015 kg[3]
(24.7179 nEarths)
Mean density
1.471±0.166 g/cm3[5]
0.003 m/s2[3]
(306 µg)
5.556 m/s
(20 km/h)[3]
Synchronous[2]
Albedo0.068 ± 0.007[5]
Temperatur≈ 233 K
12.45 ± 0.05 [5]

ReferencesEedit

  1. 1.0 1.1 "Apsis". Wikipedia. 21 November 2013. Retrieved 4 December 2013.
  2. 2.0 2.1 2.2 2.3 2.4 2.5 "HORIZONS Web-Interface". NASA. 21 September 2013. Retrieved 4 December 2013.
  3. 3.0 3.1 3.2 3.3 "Mars: Moons: Deimos". NASA Solar System Exploration. 30 September 2003. Retrieved 2 December 2013.
  4. "Deimos". Retrieved 6 Juin 2014.
  5. 5.0 5.1 5.2 5.3 "Planetary Satellite Physical Parameters". JPL (Solar System Dynamics). 13 Julie 2006. Retrieved 29 Januar 2008.
  6. "Surface area". Wikipedia. 25 November 2013. Retrieved 4 December 2013.
  7. "Volume". Wikipedia. 26 November 2013. Retrieved 4 December 2013.
  8. Blunck, Jürgen (2009). "The Satellites of Mars; Discovering and Naming the Satellites". Solar System Moons: Discovery and Mythology. Springer. p. 5. ISBN 978-3-540-68852-5.