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| Orbital semi-major axis | 1.52 A.U. 227.9 million km |
| Orbital eccentricity | 0.093 |
| Perihelion | 1.38 A.U. 206.6 million km |
| Aphelion | 1.67 A.U. 249.2 million km |
| Mean orbital speed | 24.1 km/s |
| Sidereal orbital period | 686.9 solar days 1.881 tropical years |
| Synodic orbital period | 779.9 solar days |
| Orbital inclination to the ecliptic | 1.85° |
| Greatest angular diameter, as seen from Earth | 24.5" |
| Mass | 6.42 0.11 (Earth = 1) |
| Equatorial radius | 3394 km 0.53 (Earth = 1) |
| Mean density | 3930 kg/m3 0.71 (Earth = 1) |
| Surface gravity | 3.72 m/s2 0.38 (Earth = 1) |
| Escape speed | 5.0 km/s |
| Sidereal rotation period | 1.026 solar days 24h 37m |
| Axial tilt | 23.98° |
| Surface magnetic field | approximately 1/800 (Earth = 1) |
| Magnetic axis tilt relative to rotation axis | |
| Mean surface temperature | 210 K (range 150310 K) |
| Number of moons | 2 |