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

	Prometheus	Saturn
Discovered By	S. A. Collins, D. Carlson, Voyager 1	Known by the Ancients
Date of Discovery	1980	Unknown
Average Orbit Distance	139,380 km	1,426,666,422 km
Perihelion/Perigee (closest)	139,073 km	1,349,823,615 km
Aphelion/Apogee (farthest)	139,687 km	1,503,509,229 km
Equatorial Radius	43.1 km	58,232 km
Equatorial Circumference	270.8 km	365,882.4 km
Volume	335,367 km3	827,129,915,150,897 km3
Mass	160,956,989,714,639,000 kg	568,319,000,000,000,000,000,000,000 kg
Density	0.48 g/cm3	0.687 g/cm3
Surface Area	23,343.42 km2	42,612,133,285 km2
Equatorial Surface Gravity	0.006 m/s2	10.4* m/s2
Escape Velocity	80 km/h	129,924 km/h
Mean Orbit Velocity	59,526.2 km/h	34,701 km/h
Orbit Eccentricity	0.0022	0.05386179
Orbit Inclination to Ecliptic	0.008 degree	2.49 degrees
Orbit Circumference	875,749.31 km	8,957,504,604 km