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

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″