Physical Properties
Mean Radius25,362 km
Mass8.6813 × 10^25 kg
Surface Gravity8.87 m/s²
Density1.270 g/cm³
Escape Velocity21.38 km/s
Mean Temperature76 K (-197°C)
Axial Tilt97.77°
Rotation Period17.24 h (retrograde)
AtmosphereYes
Ring SystemYes
Known Moons29
Orbital Elements (J2000)
Semi-major Axis19.188892 AU
Eccentricity0.045700
Inclination0.7720°
Orbital Period30685.40 days
Asc. Node (Ω)74.22988°
Arg. Perihelion (ω)170.96424°
Mean Anomaly (M₀)313.23218°
Perihelion2734998229.000 AU
Aphelion3006318143.000 AU