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Caliban: Facts & Figures
   Back to Uranus   Overview   Gallery   Facts & Figures   News 
Discovered By
B. Gladman, P. Nicholson, J. A. Burns, and J. Kavelaars
Date of Discovery
6 September 1997
Orbit Size Around Uranus (semi-major axis)
Metric: 7,231,100 km
English: 4,493,197 miles
Periapsis (closest)
Metric: 5,920,825 km
Apoapsis (farthest)
Metric: 8,541,375 km
Sidereal Orbit Period (Length of Year)
1.587214237 Earth years
579.73 Earth days
By Comparison: Retrograde orbit
Orbit Circumference
Metric: 45,059,071.93 km
Average Orbit Velocity
Metric: 3,238.5 km/h
Orbit Eccentricity
Orbit Inclination
141.529 degrees relative to the ecliptic plane
By Comparison: Retrograde orbit
Mean Radius
Metric: 36.0 (assuming an albedo of 0.04) km
English: 22.4 (assuming an albedo of 0.04) miles
Equatorial Circumference
Metric: 226.2 km
Metric: 195,432 km3
Metric: 299,733,686,619,439,000 kg
Scientific Notation: 2.9973 x 1017 kg
Metric: 1.5 g/cm3
Surface Area
Metric: 16,286.02 km2
Surface Gravity
Metric: 0.015 m/s2
Escape Velocity
Metric: 120 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

-Dr. Ellis Miner, retired planetary scientist, Jet Propulsion Laboratory
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Last Updated: 7 Mar 2011