Mass (kg): 6.42 x 1023
Diameter (km): 6787
Mean density (kg/m3): 3940
Escape velocity (m/s): 5000
Average distance from Sun : 1.524 AU (227,936,640 km)
Rotation period (length of day in Earth days): 1.026
Revolution period (length of year in Earth days) : 686.98
Obliquity (tilt of axis degrees): 25
Orbit inclination (degrees): 1.85
Orbit eccentricity (deviation from circular) : 0.093
Maximum surface temperature (K) : 310
Minimum surface temperature (K) : 150
Visual geometric albedo (reflectivity): 0.15
Highest point on surface : Olympus Mons (about 24 km above surrounding lava plains)
Atmospheric components : 95% carbon dioxide, 3% nitrogen, 1.6% argon
Surface materials: basaltic rock and altered materials