Compare Worlds
Put any objects side by side, with sizes drawn to true relative scale.
The Moon
Pluto
Ceres
Disc areas drawn to true relative diameter. Objects with no defined radius (spacecraft, nebulae) are omitted from the picture.
| Property | The Moon | Pluto | Ceres |
|---|---|---|---|
| Type | Moon | Dwarf Planet | Dwarf Planet |
| Radius | 1,737 km | 1,188 km | 470 km |
| Surface gravity | 1.62 m/s² | 0.62 m/s² | 0.28 m/s² |
| Day (rotation) | 655.7 h | 153.3 h | 9.1 h |
| Year (orbit) | 27.3 days | 90,560.0 days | 1,682.0 days |
| Distance | 384,400 km on average — light makes the trip in 1.3… | From 4.3 to 7.5 billion km from Earth; light takes 4–7 hours | About 260 to 590 million km from Earth, in the main… |
| In one line | Humans have walked on only one other world: Earth's constant companion. | The beloved dwarf planet, a tiny frozen world with a giant heart. | The largest object in the asteroid belt is a dwarf planet with salty bright spots and… |
“—” means the property doesn’t apply or isn’t defined for that object. Full sourced figures live on each object’s own page.