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Deimos
Orbit data - Object data - Mythology - Links Go to the bottom of the page
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Photo of the satellite Deimos of the planet Mars
Deimos   Mars II

Hide this area Orbit data
Mean distance from the planet Mars 23.459 km
Orbital period around the planet Mars (sideric) 30,3 h
Mean orbital velocity 1,35 km/s
Orbital inclination 1,79 °
Eccentricity of the orbit around the planet Mars 0,0005
Hide this area Object data
Discovered by Asaph Hall 1877
Mass 2,4 × 1015 kg
Equatorial radius 7,5 × 6,1 × 5,2 km
Mean density 1,75 g/cm³
Escape velocity 0,0057 km/s
Surface force of gravity 0,2 m/s²
Rotational period (synchronous) 30,3 h
Albedo 0,08
Apparent magnitude + 12,4 mvis
Hide this area Mythology

The personification of dread. Deimos ("fear") is considered as a son of Ares, and brother of Phobos. He accompanied Ares on the battlefields.

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File icon NASA (Viking Orbiter) - Mosaic of Deimos
Link to the page "Views of the Solar System"
File icon Welcome to the Planets
Online version of the "Planetary Data System Educational CD-ROM"
File icon A Multimedia Tour of the Solar System - The Nine Planets
© William A. Arnett
© 2017 by Bernd Onasch - Imprint Go to the top of the page
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