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HD 114386
Star in the constellation Centaurus From Wikipedia, the free encyclopedia
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HD 114386 is a star with a pair of orbiting exoplanets in the southern constellation of Centaurus. It has an apparent visual magnitude of 8.73,[2] which means it cannot be viewed with the naked eye but can be seen with a telescope or good binoculars. Based on parallax measurements, the system is located at a distance of 91 light years from the Sun. It is receding with a radial velocity of 33.4 km/s.[3] The star shows a high proper motion, traversing the celestial sphere at an angular rate of 0.318 arcsec yr−1.[7]
The spectrum of HD 114386 yields a stellar classification of K3 V,[2] matching a K-type main-sequence star, or orange dwarf. It has 76% of the mass of the Sun and 73% of the Sun's radius. HD 114386 is a much older star than the Sun with an estimated age of roughly nine billion years.[4] The abundance of iron in the stellar atmosphere, a measure of the star's metallicity, is nearly solar.[5] It is rather dim compared to the Sun, radiating just 28% of the luminosity of the Sun from its photosphere at an effective temperature of 4,926 K.[4]
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Planetary system
In 2004, the Geneva Extrasolar Planet Search Team announced the discovery of an extrasolar planet orbiting the star.[2] The preliminary data for a second exoplanet was released in 2011.[8]
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See also
References
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