Planet
Venus
Shrouded in a dense CO₂ atmosphere and sulphuric-acid clouds, the hottest planet in the Solar System thanks to a runaway greenhouse effect. It rotates retrograde: a Venus day (243 days) is longer than a Venus year.
| Type | Planet |
|---|---|
| Parent body | Sun |
| Radius | 6,052 km · 0.95 R⊕ |
| Mass | 4.868 × 10²⁴ kg · 0.815 M⊕ |
| Mean density | 5.24 g/cm³ |
| Surface gravity | 8.87 m/s² · 0.9 × Earth |
| Escape velocity | 10.4 km/s |
| Rotation period | 243 days (retrograde) |
| Mean distance from the Sun | 0.723 AU (108 million km) |
| Eccentricity | 0.007 |
| Orbital period | 225 days |
| Temperature | 737 K (464 °C) |
| Surface pressure | 92 bar |
| Atmosphere | 96.5% CO₂, 3.5% N₂ |
| Moons | 0 |