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Comparison Chart
Comparison: Umbriel vs. Uranus

This chart shows the differences between Umbriel and Uranus. To change the planets/moons being compared, change one or more of the form fields at the bottom and click Refresh.

Discovered By
W. Lassell
William Herschel
Date of Discovery
1851
13 March 1781
Average Orbit Distance
266,000 km
2,870,658,186 km
Perihelion/Perigee (closest)
264,963 km
2,734,998,229 km
Aphelion/Apogee (farthest)
267,037 km
3,006,318,143 km
Equatorial Radius
584.7 km
25,362 km
Equatorial Circumference
3,673.8 km
159,354.1 km
Volume
837,313,109 km3
68,334,355,695,584 km3
Mass
1,221,414,772,974,210,000,000 kg
86,810,300,000,000,000,000,000,000 kg
Density
1.459 g/cm3
1.270 g/cm3
Surface Area
4,296,116.52 km2
8,083,079,690 km2
Equatorial Surface Gravity
0.238 m/s2
8.87 m/s2
Escape Velocity
1,901 km/h
76,968 km/h
Mean Orbit Velocity
16,804.6 km/h
24,477 km/h
Orbit Eccentricity
0.0039
0.04725744
Orbit Inclination to Ecliptic
0.128 degree
0.77 degrees
Orbit Circumference
1,671,320.94 km
18,026,802,831 km

 

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Last Updated: 2 Apr 2014