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Proxima Centauri b is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri in the constellation Centaurus. It can also be referred to as Proxima b, or Alpha Centauri Cb. The host star is the closest star to the Sun, at a distance of about 4.2 light-years (1.3 parsecs) from Earth, and is part of the larger triple star…
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Proxima Centauri b | Detection method | Doppler spectroscopy | 1.00 | infobox |
| Proxima Centauri b | Discovered by | Anglada-Escudé et al. | 1.00 | infobox |
| Proxima Centauri b | Discovery date | 24 August 2016 | 1.00 | infobox |
| Proxima Centauri b | Discovery site | European Southern Observatory | 1.00 | infobox |
| Proxima Centauri b | Eccentricity | low[a] | 1.00 | infobox |
| Proxima Centauri b | Mass | ≥1.055±0.055 M🜨 | 1.00 | infobox |
| Proxima Centauri b | Mean radius | 0.94–1.4 R🜨[b] | 1.00 | infobox |
| Proxima Centauri b | Orbital period (sidereal) | 11.18465±0.00053 d | 1.00 | infobox |
| Proxima Centauri b | Semi-amplitude | 1.226±0.062 m/s | 1.00 | infobox |
| Proxima Centauri b | Semi-major axis | 0.04848±0.00029 AU | 1.00 | infobox |
| Proxima Centauri b | Star | Proxima Centauri | 1.00 | infobox |
| Proxima Centauri b | Temperature | Teq: 234 K (−39 °C; −38 °F) | 1.00 | infobox |
| Proxima Centauri b | is a | exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri in the constellation Centaurus | 0.90 | text |
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