Charon vs Earth
Earth is about 11 times as wide as Charon and Earth runs the hotter. Earth is the closer of the two to Earth, with an Earth-similarity index of 1.00.
| Charon | Earth | |
|---|---|---|
| Type | Rocky world | Rocky world |
| Size (radius) | 0.095 R⊕ | 1.00 R⊕ |
| Surface gravity | 0.03× Earth | 1.00× Earth |
| Equilibrium temperature | -220°C (-364°F) | 15°C (59°F) |
| Year (orbital period) | 248 years | 365 days |
| Distance from Earth | in our solar system | in our solar system |
| Earth-similarity index | 0.10 | 1.00 |
Common questions
Is Charon bigger than Earth?
Earth is the larger of the two: Charon is 0.095 R⊕ across and Earth is 1.00 R⊕, where Earth is 1 R⊕.
Which has stronger gravity, Charon or Earth?
Earth pulls harder: surface gravity is 0.03× Earth on Charon and 1.00× Earth on Earth.