| Planet | Equatorial Diameter (kilometers) | Average Distance to Sun (AU) | Period of Rotation (Earth days) | Period of Revolution (Earth years) | Number of Moons |
|---|---|---|---|---|---|
| Mercury | 4,880 | 0.39 | 59 | 0.24 | 0 |
| Venus | 12,104 | 0.72 | 243 | 0.62 | 0 |
| Earth | 12,756 | 1 | 1 | 1 | 1 |
| Mars | 6,794 | 1.52 | 1.03 | 1.88 | 2 |