| Hint | Answer | % Correct |
|---|---|---|
| 1818 km | Io | 96%
|
| 1737 km | Moon | 96%
|
| 2575 km | Titan | 89%
|
| 2634 km | Ganymede | 85%
|
| 1560 km | Europa | 81%
|
| 2408 km | Callisto | 78%
|
| 1353 km | Triton | 70%
|
| 603 km | Charon | 67%
|
| 788 km | Titania | 59%
|
| 764 km | Rhea | 56%
|
| 578 km | Ariel | 48%
|
| 734 km | Iapetus | 44%
|
| 761 km | Oberon | 44%
|
| 584 km | Umbriel | 41%
|
| 536 km | Tethys | 37%
|
| 562 km | Dione | 33%
|