| 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
|
