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HD 108874 c

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Extrasolar planet in the constellation Coma Berenices
HD 108874 c
Discovery
Discovered byVogt et al.
Discovery siteCalifornia, United States
Discovery dateJune 24, 2005
Detection methodradial velocity
Orbital characteristics
Semi-major axis2.77 ± 0.16 AU (414,000,000 ± 24,000,000 km)
Eccentricity0.273 ± 0.040
Orbital period (sidereal)1680 ± 24 d
Time of periastron2,452,797 ± 49
Argument of periastron10 ± 11
Semi-amplitude18.90 ± 0.72
StarHD 108874
Physical characteristics
Mass>1.064 ± 0.099 MJ

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.

References

  1. ^ Vogt, Steven S.; et al. (2005). "Five New Multicomponent Planetary Systems" (PDF). The Astrophysical Journal. 632 (1): 638–658. Bibcode:2005ApJ...632..638V. doi:10.1086/432901. S2CID 16509245.
  2. ^ 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:0812.1582. Bibcode:2009ApJ...693.1084W. doi:10.1088/0004-637X/693/2/1084. S2CID 18169921.

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