| Object | Orbital semi-major axis (A.U.) | Orbit period (Earth years) | Mass (Earth masses) | Radius (Earth radii) | Number of known moons | Rotation Period | Average density (g/cm3) |
| Mercury | 0.39 | 0.24 | 0.055 | 0.38 | 0 | 59 | 5.4 |
| Venus | 0.72 | 0.62 | 0.82 | 0.95 | 0 | -243 | 5.2 |
| Earth | 1.0 | 1.0 | 1.0 | 1.0 | 1 | 1.0 | 5.5 |
| Moon | --- | --- | 0.012 | 0.27 | --- | 27.3 | 3.3 |
| Mars | 1.5 | 1.9 | 0.11 | 0.53 | 2 | 1.0 | 3.9 |
| Jupiter | 5.2 | 11.9 | 318 | 11.2 | 16 | 0.41 | 1.3 |
| Saturn | 9.5 | 29.4 | 95 | 9.5 | 18 | 0.44 | 0.7 |
| Uranus | 19.2 | 84 | 15 | 4.0 | 17 | -0.72 | 1.3 |
| Neptune | 30.1 | 164 | 17 | 3.9 | 8 | -0.67 | 1.6 |
| Pluto | 39.5 | 248 | 0.002 | 0.2 | 1 | -6.4 | 2.1 |
| Sun | --- | --- | 332,000 | 109 | --- | 25.8 | 1.4 |