Diameter (km)12,103.0
Mean distance from the Sun(km)108,200,000
Mean orbital velocity (km/sec)35.03
Orbital period = l day (days)224.7
One day:
    Rotational period (days)243.01
Mass (Earth=1)0.81
Mean density (water=1)5.25
Surface gravity (Earth=1)0.93
Surface temperature (°C)465
Number of moons0