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Discovery[1] | |
---|---|
Discovered by | Astudillo-Defru et al., HARPS |
Discovery date | 17 March 2017 |
Radial velocity | |
Orbital characteristics[1] | |
0.091101+0.000019 −0.000017 AU | |
Eccentricity | 0.10+0.09 −0.07 |
18.6498+0.0059 −0.0052 d | |
Semi-amplitude | 1.61±0.15 m/s |
Star | Luyten's Star |
Physical characteristics | |
Mass | ≥2.89+0.27 −0.26 M🜨 |
Temperature | 259 K (−14 °C; 7 °F)[2] |
Luyten b (more commonly known as Gliese 273b) is a confirmed exoplanet, likely rocky, orbiting within the habitable zone of the nearby red dwarf Luyten's Star. It is the fourth-closest potentially habitable exoplanet known, at a distance of 12 light-years. Only Proxima Centauri b, Ross 128 b, and GJ 1061 d are closer. Discovered alongside Gliese 273c in June 2017, Luyten b is a super-Earth of around 2.89 times the mass of Earth and receives only 6% more starlight than Earth, making it one of the best candidates for habitability.[1]
exoplanets
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