Charon vs Pluto
Pluto is about 2.0 times as wide as Charon and they sit at a similar temperature.
| Charon | Pluto | |
|---|---|---|
| Type | Rocky world | Rocky world |
| Size (radius) | 0.095 R⊕ | 0.19 R⊕ |
| Surface gravity | 0.03× Earth | 0.06× Earth |
| Equilibrium temperature | -220°C (-364°F) | -229°C (-380°F) |
| Year (orbital period) | 248 years | 248 years |
| Distance from Earth | in our solar system | in our solar system |
| Earth-similarity index | 0.10 | 0.10 |
Common questions
Is Charon bigger than Pluto?
Pluto is the larger of the two: Charon is 0.095 R⊕ across and Pluto is 0.19 R⊕, where Earth is 1 R⊕.
Which has stronger gravity, Charon or Pluto?
Pluto pulls harder: surface gravity is 0.03× Earth on Charon and 0.06× Earth on Pluto.