Gliese 367 b

Gliese 367 b / Tahay
Discovery[1]
Discovered byKristine Lam, et al.
Discovery siteTESS
Discovery dateDecember 2021
Transit
Designations
Tahay,[2] TOI-731.01
Orbital characteristics[3]
0.00709±0.00027 AU
Eccentricity0.06+0.07
−0.04
0.3219225±0.0000002 d
Inclination79.89°+0.87°
−0.85°
66°+41°
−108°
Semi-amplitude1.003±0.078 m/s
StarGliese 367
Physical characteristics[3]
0.699±0.024 R🜨
Mass0.633±0.050 M🜨
Mean density
10.2±1.3 g/cm3
Temperature1,728±90 K (1,455 °C; 2,651 °F, dayside)[4]
<847 K (574 °C; 1,065 °F, nightside)[4]

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]

As of 2022, 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.

  1. ^ a b Cite error: The named reference Lam2021 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference NEW2022 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Goffo2023 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Zhang2024 was invoked but never defined (see the help page).
  5. ^ Witze, Alexandra (2021-12-02). "This tiny iron-rich world is extraordinarily metal". Nature. doi:10.1038/d41586-021-03587-z. PMID 34857947. S2CID 244846974. Archived from the original on 2021-12-05. Retrieved 2021-12-05.
  6. ^ "Planetary Systems Composite Data". NASA Exoplanet Archive. Archived from the original on 7 October 2020. Retrieved 7 December 2021.