Compare Worlds
Put any objects side by side, with sizes drawn to true relative scale.
Earth
Disc areas drawn to true relative diameter. Objects with no defined radius (spacecraft, nebulae) are omitted from the picture.
| Property | Proxima Centauri | Earth |
|---|---|---|
| Type | Star | Planet |
| Radius | — | 6,371 km |
| Surface gravity | — | 9.81 m/s² |
| Day (rotation) | — | 23.9 h |
| Year (orbit) | — | 365.2 days |
| Distance | 4.246 light-years — about 40 trillion km; Voyager 1 would… | You are here — 149.6 million km from the Sun |
| In one line | A tiny red dwarf with a planet in its habitable zone, and the nearest star to the Sun. | 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.