Deimos
Semimajor Axis of Orbit
23,459 km
Siderial Revolution Period
1d 6h 18m
Orbit Eccentricity
0.0005
Orbital Inclination
0.9 - 2.7
Radius
8 x 6 x 6 km
Visual Magnitude
12.9
Deimos, also discovered by Asaph Hall in 1877, is named after Panic, one of the dogs of the god Mars. It too is believed to be a captured asteroid due to its size. The Viking I spacecraft in 1975 provided the only good pictures ever taken of Deimos.
