Exoplanet CatalogThe Proxima Cen planetary system
Distance (light-years)4.2
Spectral typeM5.5 V
Temperature (K)2,900
Mass (Sun = 1)0.12
| Planet | Method | Year | Orbital period (days) | Radius (Earth = 1) | Mass (Earth = 1) | Equilibrium temperature (K) |
|---|---|---|---|---|---|---|
| Proxima Cen d | Radial Velocity | 2025 | 5.12 | 0.69 | 0.3 | 282 |
| Proxima Cen b | Radial Velocity | 2016 | 11.18 | 1.02 | 1.1 | 218 |
Values are the archive’s composite parameters and may combine several publications; mass may be a minimum mass (M·sin i). “–” means no value in the archive.
The star
| Spectral type | Temperature (K) | Radius (Sun = 1) | Mass (Sun = 1) |
|---|---|---|---|
| M5.5 V | 2,900 | 0.14 | 0.12 |
About this page
Proxima Cen is about 4.2 light-years from the Sun and has 2 confirmed planet(s).