Planet
The smallest planet and closest to the Sun, with no atmosphere to retain heat.
| Type | Planet |
|---|---|
| Distance from the Sun | 0.39 AU |
| Diameter | 4,879 km |
| Mass | 3.30 × 10^23 kg |
| Surface gravity | 3.7 m/s² |
| Temperature | 67°C |
| Moons | 0 |
| Rings | No |
| Orbital period | 88 days |
| Rotation period | 1,408 hours |
| Apparent magnitude | -0.4 |
| Redshift | 0 |
| Discovered | Prehistoric |