Phobos (Satellite of Mars)
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Constants
Mean Radius: 9.2 x 13.4 km
Mass: 2.01 x 10^-10 (Earth=1)
Density: 1.75 (g/cm^3)
Gravity: 0.0007 (Earth=1)
Orbit Period: 0.319 (Earth days)
Rotation Period: 0.319 (Earth days)
Semimajor Axis of Orbit: 9,738 km
Eccentricity of Orbit: 0.018
Notes on Constants Table
- Official names of features on Phobos as approved by the International Astronomical Union.
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