14 Herculis c

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14 Herculis c
Extrasolar planet List of extrasolar planets
14 Herculis c (Celestia).jpg
14 Herculis c in Celestia as an ammonia cloud gas giant
Parent star
Star 14 Herculis
Constellation Hercules
Right ascension (α) 16h 10m 23.59s
Declination (δ) +43° 49′ 18.2″
Apparent magnitude (mV) 6.67
Distance 59.0 ly
(18.1 pc)
Spectral type K0V
Mass (m) 0.79 M
Radius (r) 0.88 R
Temperature (T) 5250 K
Metallicity [Fe/H] 0.35
Age 3.9 Gyr
Orbital elements
Semimajor axis (a) 6.9[1] AU
Eccentricity (e) 0[1]
Orbital period (P) 6906 ± 70[1] d
Time of periastron (T0) 2,449,100.0[1] JD
Semi-amplitude (K) 24.5 ± 1.4[1] m/s
Physical characteristics
Minimum mass (m sin i) 2.1[1] MJ
Discovery information
Discovery date 17 November 2005
2 November 2006 (confirmed)
Discoverer(s) Goździewski et al.
Discovery method Doppler spectroscopy
Discovery site  United States
Discovery status Published
Database references
Extrasolar Planets
Encyclopaedia
data
SIMBAD data
Exoplanet Archive data
Open Exoplanet Catalogue data

14 Herculis c or 14 Her c is an extrasolar planet approximately 59 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. This planet was discovered on November 17, 2005 and confirmed on November 2, 2006.[2] 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.[1]

References[edit]

  1. ^ a b c d e f g 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. 
  2. ^ 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". The Astrophysical Journal 645 (1): 688–703. arXiv:astro-ph/0511463. Bibcode:2006ApJ...645..688G. doi:10.1086/504030. 

External links[edit]


Coordinates: Sky map 16h 10m 23.59s, +43° 49′ 18.2″