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'''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 [[HD 202206|star]]. This was the first [[circumbinary planet]] to be found around a main sequence star. |
'''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 [[HD 202206|star]]. This was the first [[circumbinary planet]] to be found around a main sequence star. |
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The planet orbits 3.07 times further out and is 7.13 times less massive than the first companion, having a semi-[[amplitude]] of only 42 m/s. Its mass is 2.44 times that of [[Jupiter]] and its [[diameter]] is roughly the same size as Jupiter's. The [[orbital resonance]] of the planet orbiting the brown dwarf is 5:1. The [[Orbital eccentricity|eccentricity]] of the planet is higher than that of all the [[planet]]s and [[dwarf planet]]s in |
The planet orbits 3.07 times further out and is 7.13 times less massive than the first companion, having a semi-[[amplitude]] of only 42 m/s. Its mass is 2.44 times that of [[Jupiter]] and its [[diameter]] is roughly the same size as Jupiter's. The [[orbital resonance]] of the planet orbiting the brown dwarf is 5:1. The [[Orbital eccentricity|eccentricity]] of the planet is higher than that of all the [[planet]]s and [[dwarf planet]]s in the [[Solar System]] except [[Eris (dwarf planet)|Eris]], which has an eccentricity of 0.44. |
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== References == |
== References == |
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Template:Planetbox begin Template:Planetbox star Template:Planetbox orbit Template:Planetbox character Template:Planetbox discovery Template:Planetbox end
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. This was the first circumbinary planet to be found around a main sequence star.
The planet orbits 3.07 times further out and is 7.13 times less massive than the first companion, having a semi-amplitude of only 42 m/s. Its mass is 2.44 times that of Jupiter and its diameter is roughly the same size as Jupiter's. The orbital resonance of the planet orbiting the brown dwarf is 5:1. The eccentricity of the planet is higher than that of all the planets and dwarf planets in the Solar System except Eris, which has an eccentricity of 0.44.
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