| 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 |
