Earth vs The Moon
Earth is about 3.7 times as wide as The Moon and Earth runs the hotter. Earth is the closer of the two to Earth, with an Earth-similarity index of 1.00.
| Earth | The Moon | |
|---|---|---|
| Type | Rocky world | Rocky world |
| Size (radius) | 1.00 R⊕ | 0.27 R⊕ |
| Surface gravity | 1.00× Earth | 0.17× Earth |
| Equilibrium temperature | 15°C (59°F) | -23°C (-10°F) |
| Year (orbital period) | 365 days | 27 days |
| Distance from Earth | in our solar system | in our solar system |
| Earth-similarity index | 1.00 | 0.67 |
Common questions
Is Earth bigger than The Moon?
Earth is the larger of the two: Earth is 1.00 R⊕ across and The Moon is 0.27 R⊕, where Earth is 1 R⊕.
Which has stronger gravity, Earth or The Moon?
Earth pulls harder: surface gravity is 1.00× Earth on Earth and 0.17× Earth on The Moon.