Planetary data for Saturn

mean distance from Sun 1,427,000,000 km (9.5 AU)

eccentricity of orbit 0.054

inclination of orbit to ecliptic 2.5°

Saturnian year (sidereal period of revolution) 29.44 Earth years

visual magnitude at mean opposition 0.7

mean synodic period* 378.10 Earth days

mean orbital velocity 9.7 km/sec

equatorial radius** 60,268 km

polar radius** 54,364 km

mass 5.685 × 10²⁶ kg

mean density 0.69 g/cm³

equatorial gravity** 896 cm/sec²

polar gravity** 1,214 cm/sec²

equatorial escape velocity** 35.5 km/sec

polar escape velocity** 37.4 km/sec

rotation period (magnetic field) 10 hr 39 min 24 sec (Voyager era); about 10 hr 46 min (Cassini-Huygens mission)

inclination of equator to orbit 26.7°

magnetic field strength at equator 0.21 gauss

number of known moons at least 47

planetary ring system 3 major rings comprising myriad component ringlets; several less-dense rings

*Time required for the planet to return to the same position in the sky relative to the Sun as seen from Earth.

**Calculated for the altitude at which 1 bar of atmospheric pressure is exerted.