Gliese 422 b
| Discovery | |
|---|---|
| Discovered by | M. Tuomi et al.[1] |
| Discovery date | 3 March 2014[1] |
| Radial velocity | |
| Orbital characteristics | |
| 0.111 AU (16,600,000 km) | |
| Eccentricity | 0.11±0.04[2] |
| 20.129±0.005 d[2] | |
| Semi-amplitude | 4.49[1] |
| Star | Gliese 422 (Innes' star) |
Gliese 422 b is an exoplanet orbiting the red dwarf Gliese 422 (Innes' star). Gliese 422 b was discovered in 2014, and the discovery was confirmed in 2020.[2] It has a minimum mass of about ten times that of Earth. [2]
It is located on the inner edge of circumstellar habitable zone (HZ) of Gliese 422, which extends from 0.11 to 0.21 AU.[1] Gliese 422 b's semi-major axis is 0.119 AU and its orbital period is 26.161 Earth days.[1]
References
[edit]- ^ a b c d e Tuomi, Mikko; Jones, Hugh R. A; Barnes, John R; Anglada-Escudé, Guillem; Jenkins, James S (2014). "Bayesian search for low-mass planets around nearby M dwarfs. Estimates for occurrence rate based on global detectability statistics". Monthly Notices of the Royal Astronomical Society. 441 (2): 1545. arXiv:1403.0430. Bibcode:2014MNRAS.441.1545T. doi:10.1093/mnras/stu358.
- ^ a b c d Feng, Fabo; Butler, R. Paul; Shectman, Stephen A.; Crane, Jeffrey D.; Vogt, Steve; Chambers, John; Jones, Hugh R. A.; Wang, Sharon Xuesong; Teske, Johanna K.; Burt, Jenn; Díaz, Matías R.; Thompson, Ian B. (2020). "Search for Nearby Earth Analogs. II. Detection of Five New Planets, Eight Planet Candidates, and Confirmation of Three Planets around Nine Nearby M Dwarfs". The Astrophysical Journal Supplement Series. 246 (1): 11. arXiv:2001.02577. Bibcode:2020ApJS..246...11F. doi:10.3847/1538-4365/ab5e7c.
External links
[edit]- "Planet GJ 422 b". Extrasolar Planets Encyclopaedia. 25 May 2014.
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