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HD 183263 c Extrasolar planet List of extrasolar planets Parent star Star HD 183263 Constellation Aquila Right ascension (α) 19h 28m 24.5727s Declination (δ) +08° 21′ 28.995″ Apparent magnitude (mV) 7.86 Distance 172 ly (52.8 pc) Spectral type G2IV Orbital elements Semimajor axis (a) 4.25 ± 0.47 AU Periastron (q) 3.17 AU Apastron (Q) 5.33 AU Eccentricity (e) 0.253 ± 0.076 Orbital period (P) 2950 ± 340 d (8.08 y) Orbital speed (υ) 15.7 km/s Argument of periastron (ω) 339.6 ± 9.1° Time of periastron (T0) 2451910 ± 120 JD Physical characteristics Minimum mass (m sin i) 3.82 ± 0.59 MJ Discovery information Discovery date December 8, 2008 Discoverer(s) Wright et al. Detection method Doppler spectroscopy Discovery site Lick and Keck Observatories Discovery status Confirmed Other designations HIP 95740 c Database references Extrasolar Planets Encyclopaedia data SIMBAD data 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. See also HD 183263 b References Wright et al.; Upadhyay, S.; Marcy, G. W.; Fischer, D. A.; Ford, Eric B.; Johnson, John Asher (2009). "Ten New and Updated Multi-planet Systems, and a Survey of Exoplanetary Systems" (abstract). The Astrophysical Journal 693 (2): 1084–1099. Bibcode 2009ApJ...693.1084W. doi:10.1088/0004-637X/693/2/1084. (web Preprint) External links "Simulation HD 183263 c".  Coordinates: 19h 28m 24.5727s, +08° 21′ 28.995″ This extrasolar planet related article is a stub. You can help Wikipedia by expanding it.v · d · e