Compare Worlds
Put any objects side by side, with sizes drawn to true relative scale.
Charon
Earth
Disc areas drawn to true relative diameter. Objects with no defined radius (spacecraft, nebulae) are omitted from the picture.
| Property | Charon | Earth |
|---|---|---|
| Type | Moon | Planet |
| Radius | 606 km | 6,371 km |
| Surface gravity | 0.29 m/s² | 9.81 m/s² |
| Day (rotation) | 153.3 h | 23.9 h |
| Year (orbit) | 6.4 days | 365.2 days |
| Distance | About 5.9 billion km from Earth on average (riding with… | You are here — 149.6 million km from the Sun |
| In one line | Half the size of Pluto itself, this giant companion makes the pair the Solar System's… | The only place in the universe where life is confirmed to exist. We call it home. |
“—” means the property doesn’t apply or isn’t defined for that object. Full sourced figures live on each object’s own page.