Astronomy:G 9-40 b
From HandWiki
Short description: Super-Earth orbiting G 9-40
| Discovery[1] | |
|---|---|
| Discovery date | December 2019 |
| radial velocity and transit | |
| Orbital characteristics[1][2] | |
| 0.0385+0.0078−0.0053 AU | |
| Eccentricity | 0 |
| Orbital period | 5.7459982±0.0000020 d |
| Inclination | 88.57+0.63−0.47 |
| Physical characteristics[2] | |
| Mean radius | 1.900±0.065R⊕ |
| Mass | 4.00±0.63M⊕ |
| Mean density | 3.20+0.63−0.58 |
| 10.8±1.8 m/s2 | |
| Physics | 440.6±7.6 |
G 9-40 b is a Super-Earth exoplanet that has an orbital period of 5.7 days. The host star is a red dwarf located 91 light years away from Earth between Cancer and Hydra. The planet was discovered in 2019.[3][4]
See also
References
- ↑ 1.0 1.1 Stefánsson, Guðmundur et al. (2019), "A sub-Neptune sized planet transiting the M2.5-dwarf G 9-40: Validation with the Habitable-zone Planet Finder", The Astronomical Journal 159 (3): 100, doi:10.3847/1538-3881/ab5f15, Bibcode: 2020AJ....159..100S
- ↑ 2.0 2.1 Luque, R. et al. (2022), "Precise mass determination for the keystone sub-Neptune planet transiting the mid-type M dwarf G 9-40", Astronomy & Astrophysics 666: A154, doi:10.1051/0004-6361/202244426, Bibcode: 2022A&A...666A.154L
- ↑ "Exoplanet-catalog". https://exoplanets.nasa.gov/exoplanet-catalog/7545/g-9-40-b/.
- ↑ "The Extrasolar Planet Encyclopaedia — G 9-40 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/g_9_40_b--7229/.
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