| 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
- ^ 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
- "Planet GJ 422 b". Extrasolar Planets Encyclopaedia. 25 May 2014.
2014 in space | ||
|---|---|---|
Space probe launches
 |
|    |
| Impact events | ||
| Selected NEOs | ||
| Exoplanets | ||
| Discoveries |
| |
| Novae | ||
| Comets
| ||
| Space exploration |
| |
| ||
 | This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it. |
| 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
- ^ 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
- "Planet GJ 422 b". Extrasolar Planets Encyclopaedia. 25 May 2014.
2014 in space | ||
|---|---|---|
|
Space probe launches
|
| |
| Impact events | ||
| Selected NEOs | ||
| Exoplanets | ||
| Discoveries |
| |
| Novae | ||
| Comets
| ||
| Space exploration |
| |
| ||
|
| This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it. |