| Mean Radius (km) | Orbiting | Answer | % Correct |
|---|---|---|---|
| 1737 | Earth | Moon | 97%
|
| 1818 | Jupiter | Io | 96%
|
| 2576 | Saturn | Titan | 93%
|
| 2634 | Jupiter | Ganymede | 90%
|
| 1561 | Jupiter | Europa | 88%
|
| 1185 | Sun | Pluto | 87%
|
| 1353 | Neptune | Triton | 84%
|
| 2408 | Jupiter | Callisto | 81%
|
| 1163 | Sun | Eris | 79%
|
| 789 | Uranus | Titania | 68%
|