HD 108874 c

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.^[1]

HD 108874 c

Discovery
Discovered by	Vogt et al.[1]
Discovery site	California, United States
Discovery date	June 24, 2005
Detection method	radial velocity
Orbital characteristics
Semi-major axis	2.77 ± 0.16 AU (414,000,000 ± 24,000,000 km)[2]
Eccentricity	0.273 ± 0.040[2]
Orbital period (sidereal)	1680 ± 24[2] d
Time of periastron	2,452,797 ± 49[2]
Argument of periastron	10 ± 11[2]
Semi-amplitude	18.90 ± 0.72[2]
Star	HD 108874
Physical characteristics
Mass	>1.064 ± 0.099[2] MJ