Artistical representation of a super-Neptune exoplanet.
Discovery[1][2]
Discovered by
Dedrick et al.
Discovery date
2020
Detection method
Radial velocity
Designations
Alternative names
HD 97101 Ac, HIP 54646 c[3]
Orbital characteristics
Semi-major axis
1.4+0.055 −0.06 AU[2]
Eccentricity
0.093+0.1 −0.064[2]
Orbital period (sidereal)
749.83+4.35 −3.63 d[2] 2.054 year
Argument of perihelion
74°+74° −200°[2]
Star
Gliese 414 A
Physical characteristics
Mean radius
8.4+3.6 −2.5R🜨 (0.749+0.321 −0.223RJ)[2]
Mass
53.83+9.18 −8.58M🜨 (0.169+0.029 −0.027MJ)[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 another 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.
^ abcdefghijDedrick, 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.
^ abCite error: The named reference :2 was 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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Gliese414 Ab, also known as GJ 414 Ab, is a sub-Neptune exoplanet orbiting Gliese414 A, an orange dwarf located 39 light-years from Earth, in the constellation...
of binary system. Gl 414A is also known as HD 97101 and HIP 54646. Gliese414Ac 0.177+0.033 −0.031 0.784+0.360 −0.238 748.3+1.3 −1.2 1.43±0.06 123.3±13...
W. Archived from the original on 8 October 2017. Retrieved 9 May 2014. Gliese, W.; Jahreiß, H. (1991). "Gl 559". Preliminary Version of the Third Catalogue...
of the high pressure caused by gravity, as it was observed on exoplanets Gliese 436 b and GJ 1214 b. Water politics is politics affected by water and water...
Chelsea X.; Rice, Ken; Van Eylen, Vincent; Nabbie, Emma (21 May 2024), "Gliese 12 b, A Temperate Earth-sized Planet at 12 Parsecs Discovered with TESS...
710 and 1190 light-years away respectively. The faint (magnitude 12.23) Gliese 754, a red dwarf of spectral type M4.5V, is one of the nearest 100 stars...
2016. The pair of stars orbit each other with a period of 881.6 days (2.414 a) and an eccentricity of 0.417. The plane of their orbit is inclined by...
Monthly Notices of the Royal Astronomical Society, 414 (3): 2602–17, arXiv:1101.2406, Bibcode:2011MNRAS.414.2602D, doi:10.1111/j.1365-2966.2011.18575.x, S2CID 118560311...
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