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SSE Home  >  Planets  >  Uranus  >  Moons  >  Oberon  >  Facts & Figures 
Oberon: Facts & Figures
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Discovered By
W. Herschel
Date of Discovery
1787
Orbit Size Around Uranus (semi-major axis)
Metric: 583,500 km
English: 362,570 miles
Periapsis (closest)
Metric: 582,683 km
Apoapsis (farthest)
Metric: 584,317 km
Sidereal Orbit Period (Length of Year)
13.46 Earth days
Orbit Circumference
Metric: 3,666,236.83 km
Average Orbit Velocity
Metric: 11,349.2 km/h
Orbit Eccentricity
0.0014
Orbit Inclination
0.068 degree
Mean Radius
Metric: 761.4 km
Equatorial Circumference
Metric: 4,784.0 km
Volume
Metric: 1,848,958,769 km3
Mass
Metric: 2,883,438,065,279,000,000,000 kg
Scientific Notation: 2.8834 x 1021 kg
Density
Metric: 1.559 g/cm3
Surface Area
Metric: 7,285,101.53 km2
Surface Gravity
Metric: 0.332 m/s2
Escape Velocity
Metric: 2,559 km/h
Rotation Period (Length of Day)
By Comparison: Synchronous with orbital period
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Last Updated: 8 Feb 2012