Phobos is the larger of the two moons of Mars and it's names derives from the Greek word for fear.
Orbital period: 0.32 earth days
Orbital Speed: 2.12 km/s
Inclination: 26.04°
Mean Radius: 11.1 km
Circumference: 69.7 km
Mass: 1.072×1016 kg
Surface Gravity: 0.0057 m/s2
Apparent Magnitude: 11.3
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