Gliese 367 b
Extrasolar planet orbiting the star Gliese 367 / From Wikipedia, the free encyclopedia
Gliese 367 b, formally named Tahay,[2] is a sub-Earth exoplanet orbiting the red dwarf star Gliese 367 (GJ 367), 30.7 light-years (9.4 parsecs) from Earth in the constellation of Vela.[5] The exoplanet takes just 7.7 hours to orbit its star, one of the shortest orbits of any planet.[1]
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | Kristine Lam, et al. |
Discovery site | TESS |
Discovery date | December 2021 |
Transit | |
Designations | |
Tahay,[2] TOI-731.01 | |
Orbital characteristics[3] | |
0.00709±0.00027 AU | |
Eccentricity | 0.06+0.07 −0.04 |
0.3219225±0.0000002 d | |
Inclination | 79.89°+0.87° −0.85° |
66°+41° −108° | |
Semi-amplitude | 1.003±0.078 m/s |
Star | Gliese 367 |
Physical characteristics[3] | |
Mean radius | 0.699±0.024 R🜨 |
Mass | 0.633±0.050 M🜨 |
Mean density | 10.2±1.3 g/cm3 |
Temperature | 1,728±90 K (1,455 °C; 2,651 °F, dayside)[4] <847 K (574 °C; 1,065 °F, nightside)[4] |
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As of 2022[update], Gliese 367 b is the smallest known exoplanet within 10 parsecs of the Solar System,[6] and the second-least massive after Proxima Centauri d.