Mass (kg): 3.3 x 1023
Diameter (km): 4879.4
Mean density (kg/m3): 5420
Escape velocity (m/s): 4300
Average distance from Sun: 0.387 AU* (57,909,175 km)
Rotation period (length of day in Earth days): 58.65
Revolution period (length of year in Earth days): 87.97
Obliquity (tilt of axis degrees): 0
Orbit inclination (degrees): 7
Orbit eccentricity (deviation from circular): 0.206
Mean surface temperature (K): 452
Maximum surface temperature (K): 700
Minimum surface temperature (K): 100
Visual geometric albedo (reflectivity): 0.12
Largest known surface feature: Caloris Basin (1350 km diameter)
Atmospheric components: trace amounts of hydrogen and helium
Surface materials : basaltic and anorthositic rocks and regolith
Note: * 1 Astronomical Unit (AU)= 149,597,871 km