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Gas giant exoplanet orbiting HD 221416 From Wikipedia, the free encyclopedia
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]
Discovery | |
---|---|
Discovery date | 2019 |
Transit | |
Orbital characteristics | |
0.1228 | |
Eccentricity | 0.115 |
14.3 days | |
Star | HD 221416 |
Physical characteristics | |
0.836 Jupiters | |
Mass | 0.19 Jupiters |
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]
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]
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