HD 108874 c

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HD 108874 c
Exoplanet List of exoplanets
Parent star
Star HD 108874
Constellation Coma Berenices
Right ascension (α) 12h 30m 26.882s[1]
Declination (δ) +22° 52′ 47.38″[1]
Distance 200 ± 10[1] ly
(63 ± 4[1] pc)
Spectral type G5
Orbital elements
Semi-major axis (a) 2.77 ± 0.16[2] AU
Eccentricity (e) 0.273 ± 0.040[2]
Orbital period (P) 1680 ± 24[2] d
Argument of
periastron
(ω) 10 ± 11[2]°
Time of periastron (T0) 2,452,797 ± 49[2] JD
Semi-amplitude (K) 18.90 ± 0.72[2] m/s
Physical characteristics
Mass (m) >1.064 ± 0.099[2] MJ
Discovery information
Discovery date June 24, 2005
Discoverer(s) Vogt et al.[3]
Discovery method radial velocity
Discovery site California, United States
Discovery status Published[3]

HD 108874 c is a gas giant discovered in 2005 which orbits beyond the star's habitable zone, and receives insolation 15.9% that of Earth. It has minimum mass similar to Jupiter, although since the inclination of the orbit is not known the true mass of this planet could be much greater. The planet is possibly in a 4 : 1 orbital resonance with HD 108874 b.[3]

See also[edit]

References[edit]

  1. ^ a b c d van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
  2. ^ a b c d e f g Wright, J. T.; et al. (2009). "Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems". The Astrophysical Journal. 693 (2): 1084–1099. arXiv:0812.1582Freely accessible. Bibcode:2009ApJ...693.1084W. doi:10.1088/0004-637X/693/2/1084. 
  3. ^ a b c Vogt, Steven S.; et al. (2005). "Five New Multicomponent Planetary Systems". The Astrophysical Journal. 632 (1): 638–658. Bibcode:2005ApJ...632..638V. doi:10.1086/432901. 

External links[edit]

Coordinates: Sky map 12h 30m 26.8829s, +22° 52′ 47.383″