 Artistical representation of a super-Neptune exoplanet. | |
| Discovery[1][2] | |
|---|---|
| Discovered by | Dedrick et al. |
| Discovery date | 2020 |
| Radial velocity | |
| Designations | |
| HD 97101 Ac, HIP 54646 c[3] | |
| Orbital characteristics | |
| 1.4+0.055 −0.06 AU[2] | |
| Eccentricity | 0.093+0.1 −0.064[2] |
| 749.83+4.35 −3.63 d[2] 2.054 year | |
| 74°+74° −200°[2] | |
| Star | Gliese 414 A |
| Physical characteristics | |
| 8.4+3.6 −2.5 R🜨 (0.749+0.321 −0.223 RJ)[2] | |
| Mass | 53.83+9.18 −8.58 M🜨 (0.169+0.029 −0.027 MJ)[2] |
| Temperature | 123.3±13.2 K (−149.7 °C (−237.5 °F))[2][a] |
Gliese 414 Ac, or GJ 414 Ac, is an exoplanet orbiting Gliese 414 A, a K-type main-sequence star located 39 light-years from Earth, in the constellation Ursa Major.[4][note 1] It is classified as a super-Neptune exoplanet, being at least 54 times more massive than the Earth and about 8.5 times larger.[2] Gliese 414 Ac orbits its parent star at a distance of 1.4 astronomical units and completes one revolution around it every 2 years and 20 days.[2] It is one of the two planets orbiting Gliese 414 A, the other is Gliese 414 Ab, a sub-Neptune.[3]
- ^ Martin, Pierre-Yves (2020). "Planet GJ 414 A b". Extrasolar Planets Encyclopaedia. Archived from the original on 2023-12-14. Retrieved 2023-12-14.
- ^ a b c d e f g h i j Dedrick, Cayla M.; Fulton, Benjamin J.; Knutson, Heather A.; Howard, Andrew W.; Beatty, Thomas G.; Cargile, Phillip A.; Gaudi, B. Scott; Hirsch, Lea A.; Kuhn, Rudolf B.; Lund, Michael B.; James, David J.; Kosiarek, Molly R.; Pepper, Joshua; Petigura, Erik A.; Rodriguez, Joseph E. (2021-02-01). "Two Planets Straddling the Habitable Zone of The Nearby K Dwarf Gl 414A". The Astronomical Journal. 161 (2): 86. arXiv:2009.06503. Bibcode:2021AJ....161...86D. doi:10.3847/1538-3881/abd0ef. ISSN 0004-6256.
- ^ a b Cite error: The named reference
:2was invoked but never defined (see the help page). - ^ "Gliese 414 | NASA Exoplanet Archive". exoplanetarchive.ipac.caltech.edu. Archived from the original on 2023-12-09. Retrieved 2023-12-14.
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