Solar System Objects greater than 500 km (310.5 miles) in Radius
| Rank |
Object |
Orbits |
Radius (km) |
| 1 |
Sun |
Milky Way |
695,000 |
| 2 |
Jupiter |
Sun |
71,492 |
| 3 |
Saturn |
Sun |
60,268 |
| 4 |
Uranus |
Sun |
25,559 |
| 5 |
Neptune |
Sun |
24,764 |
| 6 |
Earth |
Sun |
6378 |
| 7 |
Venus |
Sun |
6051 |
| 8 |
Mars |
Sun |
3397 |
| 9 |
Ganymede |
Jupiter |
2634 |
| 10 |
Titan |
Saturn |
2575 |
| 11 |
Mercury |
Sun |
2440 |
| 12 |
Callisto |
Jupiter |
2403 |
| 13 |
Io |
Jupiter |
1821 |
| 14 |
Moon |
Earth |
1738 |
| 15 |
Europa |
Jupiter |
1585 |
| 16 |
Triton |
Neptune |
1353 |
| 17 |
Pluto |
Sun |
1160 |
| 18 |
Titania |
Uranus |
789 |
| 19 |
Rhea |
Saturn |
764 |
| 20 |
Oberon |
Uranus |
761 |
| 21 |
Iapetus |
Saturn |
718 |
| 22 |
Quaoar |
Sun |
650 |
Added 9/Oct/2002 |
| 23 |
Charon |
Pluto |
635 |
| 24 |
Umbriel |
Uranus |
585 |
| 25 |
Ariel |
Uranus |
579 |
| 26 |
Dione |
Saturn |
559 |
| 27 |
Tethys |
Saturn |
530 |
| 28 |
Ceres |
Sun |
510 |