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

	Mimas	Saturn
Discovered By	William Herschel	Known by the Ancients
Date of Discovery	17 September 1789	Unknown
Average Orbit Distance	185,539 km	1,426,666,422 km
Perihelion/Perigee (closest)	181,902 km	1,349,823,615 km
Aphelion/Apogee (farthest)	189,176 km	1,503,509,229 km
Equatorial Radius	198.20±0.25 km	58,232 km
Equatorial Circumference	1,245.3 km	365,882.4 km
Volume	32,613,662 km3	827,129,915,150,897 km3
Mass	37,505,676,206,690,400,000 kg	568,319,000,000,000,000,000,000,000 kg
Density	1.15 g/cm3	0.687 g/cm3
Surface Area	493,647.75 km2	42,612,133,285 km2
Equatorial Surface Gravity	0.064 m/s2	10.4* m/s2
Escape Velocity	0.158912805 km/h	129,924 km/h
Orbit Period (Length of Year)	0.00258 sidereal years	29.447498 sidereal years
Mean Orbit Velocity	51,559.8 km/h	34,701 km/h
Orbit Eccentricity	0.0196	0.05386179
Orbit Inclination to Ecliptic	1.574	2.49 degrees
Orbit Circumference	1,165,663.95 km	8,957,504,604 km