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HD 221416 b

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HD 221416 b
Discovery
Discovery date2019
Transit
Orbital characteristics
0.1228
Eccentricity0.115
14.3 days
StarHD 221416
Physical characteristics
0.836 Jupiters
Mass0.19 Jupiters

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

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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

[edit]

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

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  1. ^ "Exoplanet-catalog". Exoplanet Exploration: Planets Beyond our Solar System. Retrieved 1 November 2023.
  2. ^ Lazaro, Enrico de (29 March 2019). "Hot-Saturn Exoplanet Discovered by TESS, Characterized Using Asteroseismology | Sci.News". Sci.News: Breaking Science News. Retrieved 1 November 2023.
  3. ^ Martin, Pierre-Yves (2021). "Planet HD 221416 b". Extrasolar Planets Encyclopaedia. Retrieved 3 November 2023.
  4. ^ "HD 221416 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Retrieved 1 November 2023.
  5. ^ Guide, Universe. "HD 221416 b ExoPlanet Facts". www.universeguide.com. Retrieved 3 November 2023.








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