| Sidereal year | 365.256 days |
| Sidereal day | 23h 56m 4s |
| Mean solar day | 24 hours |
| Equatorial diameter | 12,756 km (7,926 miles) |
| Average distance from Sun | 149.6 million km (1 AU) |
| Surface gravity | 9.81 m/s² |
| Surface covered by water | About 71% |
| Natural satellites | 1 (the Moon) |