PLANETARY DATA: SATURN

Orbital semi-major axis 9.54 A.U.
1427.0 million km
Orbital eccentricity 0.054
Perihelion 9.02 A.U.
1349 million km
Aphelion 10.05 A.U.
1504 million km
Mean orbital speed 9.65 km/s
Sidereal orbital period 29.42 tropical years
Synodic orbital period 378.09 solar days
Orbital inclination to the ecliptic 2.49°
Greatest angular diameter, as seen from Earth 21"
Mass 5.681026 kg
95.16 (Earth = 1)
Equatorial radius 60,268 km
9.45 (Earth = 1)
Mean density 687 kg/m3
0.125 (Earth = 1)
Surface gravity 10.5 m/s2
1.07 (Earth = 1)
Escape speed 35.5 km/s
Sidereal rotation period 0.43 solar days
Axial tilt 26.73°
Surface magnetic field 0.67 (Earth = 1)
Magnetic axis tilt relative to rotation axis 0.8°
Surface temperature 97 K (at cloudtops)
Number of moons 18