Mass1.024e+26 kg
Equatorial radius24,746 km
Mean density1.64 gm/cm^3
Rotational period16.11 days
Orbital period164.79 years
Mean orbital velocity5.45 km/sec
Tilt of axis177.36 deg
Equatorial surface gravity11.0 m/sec^2
Equatorial escape velocity23.50 km/sec
Mean cloud temperature-193 to -153°C