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

	Tethys	Saturn
Discovered By	G.D. Cassini	Known by the Ancients
Date of Discovery	1684	Unknown
Average Orbit Distance	294,672 km	1,426,666,422 km
Perihelion/Perigee (closest)	294,643 km	1,349,823,615 km
Aphelion/Apogee (farthest)	294,701 km	1,503,509,229 km
Equatorial Radius	533.0 km	58,232 km
Equatorial Circumference	3,348.9 km	365,882.4 km
Volume	634,264,255 km3	827,129,915,150,897 km3
Mass	617,551,805,221,061,000,000 kg	568,319,000,000,000,000,000,000,000 kg
Density	0.973 g/cm3	0.687 g/cm3
Surface Area	3,569,967.66 km2	42,612,133,285 km2
Equatorial Surface Gravity	0.145 m/s2	10.4* m/s2
Escape Velocity	0.39321974 km/h	129,924 km/h
Mean Orbit Velocity	40,860.7 km/h	34,701 km/h
Orbit Eccentricity	0.0001	0.05386179
Orbit Inclination to Ecliptic	1.091 degrees	2.49 degrees
Orbit Circumference	1,851,478.78 km	8,957,504,604 km