| Name | Mass (1024kg) | Diameter (km) | Density (kg/m3) | Gravity (m/s2) | Length of day (hours) | Notes |
|---|---|---|---|---|---|---|
| Mercury | 0.330 | 4,879 | 5427 | 3.7 | 4222.6 | Closest to the Sun |
| Venus | 4.87 | 12,104 | 5243 | 8.9 | 2802.0 | |
| Earth | 5.97 | 12,756 | 5514 | 9.8 | 24.0 | Our world |
| Mars | 0.642 | 6,792 | 3933 | 3.7 | 24.7 | The red planet |
| Jupiter | 1898 | 142,984 | 1326 | 23.1 | 9.9 | The largest planet |
| Saturn | 568 | 120,536 | 687 | 9.0 | 10.7 | |
| Uranus | 86.8 | 51,118 | 1271 | 8.7 | 17.2 | The second largest planet |
| Neptune | 102 | 49,528 | 1638 | 11.0 | 16.1 | |
| Pluto | 0.0146 | 2,370 | 2095 | 0.7 | 153.3 | Declassified as a planet in 2006, but this remains controversial. |
*Data may be slightly off from the sources