HD 202206 c is an extrasolar planet discovered on November 16, 2004, using long-term observation of a formerly unconfirmed second planet after the discovery of a brown dwarf (first companion) around the star HD 202206.[2]
The planet orbits 3.07 times further out and is 85% less massive than the first companion, having a semi-amplitude of only 42 m/s. Its minimum mass is 2.44 times that of Jupiter and its diameter is likely roughly the same size as Jupiter's. The orbital resonance of the planet orbiting the brown dwarf is 5:1.[2]
Further observation of this system via astrometry revised this picture in 2017, showing that HD 202206 c is a brown dwarf or super-Jupiter, with a true mass 17.9 times that of Jupiter, in a circumbinary orbit around a pair of co-orbiting stars being viewed nearly face-on.[1]
Referencesedit
^ abcBenedict, G. Fritz; Harrison, Thomas E. (June 2017). "HD 202206: A Circumbinary Brown Dwarf System". The Astronomical Journal. 153 (6): 12. arXiv:1705.00659. Bibcode:2017AJ....153..258B. doi:10.3847/1538-3881/aa6d59. S2CID 119105717. 258.
^ abCorreia; et al. (2005). "A pair of planets around HD 202206 or a circumbinary planet?". Astronomy & Astrophysics. 440 (2): 751–758. arXiv:astro-ph/0411512. Bibcode:2005A&A...440..751C. doi:10.1051/0004-6361:20042376. S2CID 16175663.
202206, extrasolar, planet, discovered, november, 2004, using, long, term, observation, formerly, unconfirmed, second, planet, after, discovery, brown, dwarf, first, companion, around, star, 202206, discoverydiscovered, bycorreia, discovery, datenovember, 2004. HD 202206 c is an extrasolar planet discovered on November 16 2004 using long term observation of a formerly unconfirmed second planet after the discovery of a brown dwarf first companion around the star HD 202206 2 HD 202206 cDiscoveryDiscovered byCorreia et al Discovery dateNovember 16 2004Detection methodRadial velocityOrbital characteristics 1 Semi major axis2 41 AU 361 000 000 km Eccentricity0 22 0 03Orbital period sidereal 1260 11 dInclination7 7 1 1Longitude of ascending node91 11Time of periastron2453 103 452Argument of periastron280 4Semi amplitude0 041 0 001 km sStarHD 202206Physical characteristics 1 Mass17 9 2 9 1 8 MJ The planet orbits 3 07 times further out and is 85 less massive than the first companion having a semi amplitude of only 42 m s Its minimum mass is 2 44 times that of Jupiter and its diameter is likely roughly the same size as Jupiter s The orbital resonance of the planet orbiting the brown dwarf is 5 1 2 Further observation of this system via astrometry revised this picture in 2017 showing that HD 202206 c is a brown dwarf or super Jupiter with a true mass 17 9 times that of Jupiter in a circumbinary orbit around a pair of co orbiting stars being viewed nearly face on 1 References edit a b c Benedict G Fritz Harrison Thomas E June 2017 HD 202206 A Circumbinary Brown Dwarf System The Astronomical Journal 153 6 12 arXiv 1705 00659 Bibcode 2017AJ 153 258B doi 10 3847 1538 3881 aa6d59 S2CID 119105717 258 a b Correia et al 2005 A pair of planets around HD 202206 or a circumbinary planet Astronomy amp Astrophysics 440 2 751 758 arXiv astro ph 0411512 Bibcode 2005A amp A 440 751C doi 10 1051 0004 6361 20042376 S2CID 16175663 External links editEPE HD 202206 c Archived 2010 04 07 at the Wayback Machine on The Extrasolar Planets Encyclopaedia nbsp This extrasolar planet related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title HD 202206 c amp oldid 1187245517, wikipedia, wiki, book, books, library,
