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Umbriel
(A Satellite of Uranus)
The full size image of Umbriel is 101 KB.
Constants
- MEAN RADIUS: 584.7 km
- MASS: 0.00022 (Earth=1)
- DENSITY: 1.52 (gm/cm)
- GRAVITY: 0.022 (Earth=1)
- ORBIT PERIOD: 4.144 (Earth days)
- ROTATION PERIOD: 4.144 (Earth days)
- SEMIMAJOR AXIS OF ORBIT: 267,000 km
- ECCENTRICITY OF ORBIT: 0.005
Notes on Constants Table
Official names of features on Umbriel as approved by the International
Astronomical Union.
URL: http://wwwflag.wr.usgs.gov/USGSFlag/Space/wall/umbriel.html
U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, AZ 86001
webmaster@flagmail.wr.usgs.gov
Last Updated: December 17, 1996