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Comparison Chart
Comparison: Prospero vs. Uranus

This chart shows the differences between Prospero 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
Matthew J. Holman, John J. Kavelaars, Brett J. Gladman, Jean-Marc Petit, and Hans Scholl
William Herschel
Date of Discovery
18 July 1999
13 March 1781
Average Orbit Distance
16,276,800 km
2,870,658,186 km
Perihelion/Perigee (closest)
9,041,762 km
2,734,998,229 km
Aphelion/Apogee (farthest)
23,511,838 km
3,006,318,143 km
Equatorial Radius
25.0 (assuming an albedo of 0.07) km
25,362 km
Equatorial Circumference
157.1 km
159,354.1 km
65,450 km3
68,334,355,695,584 km3
98,912,116,584,414,800 kg
86,810,300,000,000,000,000,000,000 kg
1.5 g/cm3
1.270 g/cm3
Surface Area
7,853.98 km2
8,083,079,690 km2
Equatorial Surface Gravity
0.011 m/s2
8.87 m/s2
Escape Velocity
83 km/h
76,968 km/h
Orbit Period (Length of Year)
5.416481862 sidereal years
84.016846 sidereal years
Mean Orbit Velocity
2,043.2 km/h
24,477 km/h
Orbit Eccentricity
Orbit Inclination to Ecliptic
0.77 degrees
Orbit Circumference
97,014,053.99 km
18,026,802,831 km


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System of measurement:

Compare All Eight Planets

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Last Updated: 28 Apr 2014