- Distance from Earth now
- 0.328 AU (49.1 million km)
- Distance from the Sun now
- 0.727 AU (108.7 million km)
- Light time from Earth
- 2 min 44 s
- Mean radius
- 6,051.8 km (0.950 × Earth)
- Mass
- 4.867 × 10^24 kg
- Surface gravity
- 8.87 m/s² (0.90 g)
- Escape velocity
- 10.4 km/s
- Rotation period
- 243.02 days (retrograde)
- Year (orbit around the Sun)
- 224.70 days
- Average distance (semi-major axis)
- 0.723 AU (108.2 million km)
- Orbital eccentricity
- 0.0068
- Inclination to the ecliptic
- 3.39°
- Next closest approach to Earth
- 25 October 2026 — 0.273 AU (40.8 million km)
Positions from NASA JPL Horizons; physical constants from the IAU and JPL. Distances are centre to centre.