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Solar System Exploration
Sycorax: Facts & Figures
   Back to Uranus   Overview   Facts & Figures   News 
Discovered By
Philip D. Nicholson, Brett J. Gladman, Joseph A. Burns and John J. Kavelaars
Date of Discovery
6 September 1997
Orbit Size Around Uranus (semi-major axis)
Metric: 12,179,400 km
English: 7,567,928 miles
Periapsis (closest)
Metric: 5,822,971 km
Apoapsis (farthest)
Metric: 18,535,829 km
Sidereal Orbit Period (Length of Year)
3.527392197 Earth years
1288.38 Earth days
By Comparison: Retrograde orbit
Orbit Circumference
Metric: 71,012,648.50 km
Average Orbit Velocity
Metric: 2,296.6 km/h
Orbit Eccentricity
Orbit Inclination
By Comparison: Retrograde orbit
Mean Radius
Metric: 75.0 (assuming an albedo of 0.04) km
Equatorial Circumference
Metric: 471.2 km
Metric: 1,767,146 km3
Metric: 2,697,603,179,574,950,000 kg
Scientific Notation: 2.6976 x 1018 kg
Metric: 1.5 g/cm3
Surface Area
Metric: 70,685.83 km2
Surface Gravity
Metric: 0.032 m/s2
Escape Velocity
Metric: 249 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: 7 Mar 2011