 Artistic representation of a sub-Neptune exoplanet. | |
| Discovery | |
|---|---|
| Discovered by | Dedrick et al. |
| Discovery date | 2020[1] |
| Radial velocity[1][2] | |
| Designations | |
| HD 97101 Ab, HIP 54646 b,[3] LHS 2367 b, G 119-60 b, TIC 9001920 b, WISEA J111105.67+302643.6 b[4] | |
| Orbital characteristics | |
| Periastron | 0.13 AU |
| Apoastron | 0.34 AU |
| 0.24±0.01 AU[5] | |
| Eccentricity | 0.45+0.19 −0.22[5] |
| 50.817+0.031 −0.03 d[5] | |
| 111°+36° −52°[5] | |
| Star | Gliese 414 A |
| Physical characteristics | |
| 2.95+1.11 −0.91 R🜨[5] | |
| Mass | >7.6+2.44 −2.19 M🜨[5] |
| Temperature | 308.6±33.5 K (35.5 °C (95.9 °F))[5][a] |
Gliese 414 Ab, also known as GJ 414 Ab, is a sub-Neptune exoplanet orbiting Gliese 414 A, an orange dwarf located 39 light-years from Earth, in the constellation Ursa Major.[4][note 1] It is at least 7.6 times more massive than the Earth and is 3 times larger, having a diameter of 37600 km.[5] It orbits its host star at a distance of 0.24 astronomical units (36,000,000 km), completing one revolution every 51 days.[5] The distance of Gliese 414 A b from its star makes it to be located in the inner part of the optmistic habitable zone, and the planet has a equilibrium temperature of 35.5 °C.[5]
- ^ a b Martin, Pierre-Yves (2020). "Planet Gliese 414 Ab". Extrasolar Planets Encyclopaedia. Archived from the original on 2023-12-14. Retrieved 2023-12-14.
- ^ Cite error: The named reference
:3was invoked but never defined (see the help page). - ^ Cite error: The named reference
:2was invoked but never defined (see the help page). - ^ a b "⬤ Exoplanet Gliese 414 A b". Stellar Catalog. Archived from the original on 2024-01-13. Retrieved 2024-01-13.
- ^ 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.
- ^ "HD 97101". simbad.cds.unistra.fr. Retrieved 2024-01-13.
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