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Solar System Exploration
Desdemona: Facts & Figures
   Back to Uranus   Overview   Gallery   Facts & Figures   News 
Discovered By
Voyager 2 Science Team
Date of Discovery
13 January 1986
Orbit Size Around Uranus (semi-major axis)
Metric: 62,700 km
English: 38,960 miles
Periapsis (closest)
Metric: 62,694 km
Apoapsis (farthest)
Metric: 62,706 km
Sidereal Orbit Period (Length of Year)
0.001297741 Earth years
0.474 Earth days
Orbit Circumference
Metric: 393,955.72 km
Average Orbit Velocity
Metric: 34,630.4 km/h
Orbit Eccentricity
Orbit Inclination
Mean Radius
Metric: 32.0 ± 4 km
English: 19.9 ± 2 miles
Equatorial Circumference
Metric: 201.1 km
Metric: 137,258 km3
Metric: 178,341,543,538,566,000 kg
Metric: 1.3 g/cm3
Surface Area
Metric: 12,867.96 km2
Surface Gravity
Metric: 0.012 m/s2
Escape Velocity
Metric: 98 km/h

Additional Information:

-USGS Astrogeology: Gazetteer of Planetary Nomenclature:

-JPL Solar System Dynamics:

-Encyclopedia of the Solar System, second edition; edited by Lucy-Ann McFadden, Paul R. Weissman, and Torrence V. Johnson; Academic Press 2007
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Last Updated: 12 Aug 2013