HD 183263 c

HD 183263 c is an exoplanet orbiting approximately 4.25 AU from the parent star HD 183263. This planet was announced by Wright et al. on December 8, 2008 using multiple observations in Lick and Keck Observatories earlier in that year. This planet was calculated to have minimum mass of 3.82 times more than Jupiter and takes 8.08 years to revolve around the star. The orbital distance varies from 3.17 to 5.33 AU, corresponding to the orbital eccentricity of 0.253.^[1]

HD 183263 c

Discovery
Discovered by	Wright et al.[1]
Discovery site	Lick and Keck Observatories
Discovery date	December 8, 2008
Detection method	Doppler spectroscopy
Orbital characteristics
Semi-major axis	5.69±0.11 AU
Eccentricity	0.051±0.010[2]
Orbital period (sidereal)	4684±71[2] d
Time of periastron	2450430±310[2]
Argument of periastron	299±22[2]
Semi-amplitude	77.5±1.1[2]
Star	HD 183263

A 2022 study estimated the true mass of HD 183263 c at about 9.31 M_J via astrometry, although this estimate is poorly constrained.^[3]

See also

• HD 183263 b