Proxima Centauri b
 Artist's conception of Proxima Centauri b as a rocky-like exoplanet, with Proxima Centauri and the Alpha Centauri binary system in the background. The actual appearance of the planet is unknown. | |
| Discovery | |
|---|---|
| Discovered by | Anglada-Escudé et al. |
| Discovery site | European Southern Observatory |
| Discovery date | 24 August 2016 |
| Doppler spectroscopy | |
| Orbital characteristics | |
| 0.0485+0.0041 −0.0051 AU | |
| Eccentricity | 0.124+0.070 −0.068 |
| 11.18427+0.00066 −0.00070[1] d | |
| 310 ± 50[2] | |
| Semi-amplitude | 1.38 ± 0.21[2] |
| Star | Proxima Centauri |
| Physical characteristics | |
Mean radius | 1.30+1.20 −0.62[3]R |