Gas giant exoplanet orbiting HD 221416
HD 221416 b is a confirmed hot-Saturn-type exoplanet 312 light years away from earth and orbiting the late subgiant K-type star, HD 221416. It is part of a small but growing number of discovered exoplanets orbiting evolved stars.[1][2] This planet was discovered in 2019 by using the primary transit method.[3]
Physical characteristics
The exoplanet orbits the star at a close distance of 0.1228 AU, an eccentricity of 0.115 and an inclination of 85.75°.[4]
Orbital characteristics
The planet orbits HD 221416 at a distance of 0.1228 astronomical units with an orbital eccentricity of 0.115 and an orbital inclination of 85.75000. The planet orbits the star every 14.3 days (0.04 earth years).[5]
References
- ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 2023-11-01.
- ^ Lazaro, Enrico de (2019-03-29). "Hot-Saturn Exoplanet Discovered by TESS, Characterized Using Asteroseismology | Sci.News". Sci.News: Breaking Science News. Retrieved 2023-11-01.
- ^ Martin, Pierre-Yves (2021). "Planet HD 221416 b". Extrasolar Planets Encyclopaedia. Retrieved 2023-11-03.
- ^ "HD 221416 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 2023-11-01.
- ^ Guide, Universe. "HD 221416 b ExoPlanet Facts". www.universeguide.com. Retrieved 2023-11-03.
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