HD 187123 c

HD 187123 c is an extrasolar planet located approximately 156 light-years away in the constellation of Cygnus, orbiting the star HD 187123. This planet was published in 2006. The radius of the planet's orbit is 4.80 AU, 113 times more distant from the star than first companion. This takes 10 years to orbit. As it is typical for very long-period planets, the orbit is eccentric, referring to as "eccentric Jupiter". At periastron, the orbital distance is 3.60 AU and at apastron, the distance is 6.00 AU. The planet's mass is nearly 2 times that of Jupiter, but is likely to be smaller in size than the inner planet.^[2][3]

HD 187123 c

Discovery
Discovered by	Wright et al.
Discovery site	California, USA
Discovery date	November 2006
Detection method	radial velocity
Orbital characteristics
Semi-major axis	4.417±0.054 AU
Eccentricity	0.280±0.022[1]
Orbital period (sidereal)	3324±46[1] d
Time of periastron	2453625±40[1]
Argument of periastron	258.5±3.9[1]
Semi-amplitude	25.10±0.44[1]
Star	HD 187123

Render of planet

See also

• HD 187123 b