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