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Solar System Exploration
Ophelia: Facts & Figures
   Back to Uranus   Overview   Gallery   Facts & Figures   News 
Discovered By
R. Terrile, Voyager 2
Date of Discovery
Orbit Size Around Uranus (semi-major axis)
Metric: 53,800 km
English: 33,430 miles
Periapsis (closest)
Metric: 53,267 km
Apoapsis (farthest)
Metric: 54,333 km
Sidereal Orbit Period (Length of Year)
0.001029432 Earth years
0.376 Earth days
Orbit Circumference
Metric: 338,027.09 km
Average Orbit Velocity
Metric: 37,458.7 km/h
Orbit Eccentricity
Orbit Inclination
0.104 degree
Mean Radius
Metric: 21.4 km
Equatorial Circumference
Metric: 134.5 km
Metric: 41,052 km3
Metric: 53,952,063,591,499,000 kg
Scientific Notation: 5.3952 x 1016 kg
Metric: 1.3 g/cm3
Surface Area
Metric: 5,754.90 km2
Surface Gravity
Metric: 0.008 m/s2
Escape Velocity
Metric: 66 km/h
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Last Updated: 12 Aug 2013