Deimos
Deimos information Average distance from Mars: 23459 km (0.0002 AU) Equatorial radius: 7.5 x 6.1 x 5.2 km km (Diameter: 15 km) Mass: 2380000000000000 kg Siderial rotation period (length of day): 24.62 earth hours Siderial orbit period (length of year): 1.2624407 earth days Orbital eccentricity: 0.0005 Orbital inclination to ecliptic: 0.9 - 2.7 degrees		Deimos, Mars II
Deimos In Greek mythology, Deimos is one of the sons of Ares (Mars) and Aphrodite (Venus); 'deimos' is Greek for 'panic'. Discovered 1877 August 12 by Hall, photographed by Viking 1 in 1977. Deimos and Phobos are composed of carbon-rich rock like C-type asteroids and ice. Both are heavily cratered. Deimos and Phobos are probably asteroids perturbed by Jupiter into orbits that allowed them to be captured by Mars.
More Discovered by A. Hall in 1877
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