Kepler-452 b vs Proxima Cen b
Kepler-452 b is about 1.6 times as wide as Proxima Cen b and Kepler-452 b runs the hotter.
| Kepler-452 b | Proxima Cen b | |
|---|---|---|
| Type | Rocky world | Rocky world |
| Size (radius) | 1.63 R⊕ | 1.02 R⊕ |
| Surface gravity | ≈ 1.24× Earth | ≥ 1.01× Earth |
| Equilibrium temperature | -8°C (17°F) | -55°C (-67°F) |
| Year (orbital period) | 385 days | 11 days |
| Distance from Earth | 1,799 ly | 4.2 ly |
| Earth-similarity index | 0.87 | 0.89 |
Common questions
Is Kepler-452 b bigger than Proxima Cen b?
Kepler-452 b is the larger of the two: Kepler-452 b is 1.63 R⊕ across and Proxima Cen b is 1.02 R⊕, where Earth is 1 R⊕.
Which has stronger gravity, Kepler-452 b or Proxima Cen b?
Kepler-452 b pulls harder: surface gravity is ≈ 1.24× Earth on Kepler-452 b and ≥ 1.01× Earth on Proxima Cen b.