14 Herculis c
Discovery | |
---|---|
Discovered by | Goździewski et al. |
Discovery site | ![]() |
Discovery date | 17 November 2005 2 July 2021 (confirmed) |
Doppler spectroscopy | |
Orbital characteristics | |
16.4+9.3 −4.3AU[1] | |
Eccentricity | 0.45+0.17 −0.15[1] |
68+64 −25[1] years[1] | |
2,449,100.0[2] | |
Semi-amplitude | 24.5 ± 1.4[2] |
Star | 14 Herculis |
Physical characteristics | |
Mass | 5.8+1.4 −1.0MJ[1] |
14 Herculis c or 14 Her c is an extrasolar planet approximately 58.5 light-years away in the constellation of Hercules. The planet was found orbiting the star 14 Herculis, with a mass that would likely make the planet a gas giant roughly the same size as Jupiter but much more massive. It was discovered on November 17, 2005 and published on November 2, 2006,[3] although its existence was not confirmed until 2021.[1] According to a recent analysis, the existence of a second planet in the 14 Herculis system is "clearly" supported by the evidence, but the planet's parameters are not precisely known. It may be in a 4:1 resonance with the inner planet 14 Herculis b.[2]
References[]
- ^ a b c d e f The California Legacy Survey I. A Catalog of 177 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades, 2021, arXiv:2105.11583
- ^ a b c Wittenmyer, R. A.; Endl, M.; Cochran, W. D. (2007). "Long-Period Objects in the Extrasolar Planetary Systems 47 Ursae Majoris and 14 Herculis". The Astrophysical Journal. 654 (1): 625–632. arXiv:astro-ph/0609117. Bibcode:2007ApJ...654..625W. doi:10.1086/509110.
- ^ Goździewski, K.; Konacki, M.; Maciejewski, A. J. (2006). "Orbital Configurations and Dynamical Stability of Multiplanet Systems around Sun-like Stars HD 202206, 14 Herculis, HD 37124, and HD 108874" (PDF). The Astrophysical Journal. 645 (1): 688–703. arXiv:astro-ph/0511463. Bibcode:2006ApJ...645..688G. doi:10.1086/504030.
External links[]
- Jean Schneider (2011). "Notes for Planet 14 Her c". Extrasolar Planets Encyclopaedia. Retrieved 30 September 2011.
- "14 Herculis". SolStation. Archived from the original on 19 July 2008. Retrieved 2008-06-25.
Coordinates: 16h 10m 23.59s, +43° 49′ 18.2″
Categories:
- Hercules (constellation)
- Giant planets
- Exoplanets discovered in 2005
- Exoplanets detected by radial velocity
- Exoplanet stubs