Mass: 5.98 x 1024
Diameter (km): 12756
Mean density (kg/m3): 5520
Escape velocity (m/s): 11200
Average distance from Sun: 1 AU (149,597,890 km)
Rotation period (length of day in Earth days): 1 (23.93 hours)
Revolution period (length of year in Earth years): 1
Obliquity (tilt of axis degrees): 23.4
Orbit inclination (degrees): 0
Orbit eccentricity (deviation from circular): 0.017
Mean temperature (K): 281
Visual geometric albedo (reflectivity): 0.39
Atmospheric components: 78% nitrogen, 21% oxygen, 1% argon
Surface materials: basaltic and granitic rock and altered materials