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

	Stephano	Uranus
Discovered By	Brett Gladman, Matthew Holman, John J. Kavelaars, Jean-Marc Petit, and Hans Scholl	William Herschel
Date of Discovery	18 July 1999	13 March 1781
Average Orbit Distance	8,007,400 km	2,870,658,186 km
Perihelion/Perigee (closest)	6,207,336 km	2,734,998,229 km
Aphelion/Apogee (farthest)	9,807,464 km	3,006,318,143 km
Equatorial Radius	16.0 (assuming an albedo of 0.04) km	25,362 km
Equatorial Circumference	100.5 km	159,354.1 km
Volume	17,157 km3	68,334,355,695,584 km3
Mass	25,477,363,362,652,300 kg	86,810,300,000,000,000,000,000,000 kg
Density	1.5 g/cm3	1.270 g/cm3
Surface Area	3,216.99 km2	8,083,079,690 km2
Equatorial Surface Gravity	0.007 m/s2	8.87 m/s2
Escape Velocity	52 km/h	76,968 km/h
Orbit Period (Length of Year)	1.854811773 sidereal years	84.016846 sidereal years
Mean Orbit Velocity	3,054.9 km/h	24,477 km/h
Orbit Eccentricity	0.2248	0.04725744
Orbit Inclination to Ecliptic	143.819	0.77 degrees
Orbit Circumference	49,670,195.34 km	18,026,802,831 km