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Mu Piscium
Star in the constellation Pisces From Wikipedia, the free encyclopedia
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Mu Piscium (μ Piscium) is a solitary,[8] orange-hued star in the zodiac constellation of Pisces. It is visible to the naked eye with an apparent visual magnitude of 4.84.[2] Based upon an annual parallax shift of 10.73 mas as seen from Earth,[1] it is located about 304 light years from the Sun. Given this distance, it has a relatively high proper motion, advancing 296 mas per year across the sky.[9]
This is an evolved K-type giant star with a stellar classification of K4 III.[2] It has an estimated 1.25[2] times the mass of the Sun and, at the age of 5.6 billion years, has expanded to about 37[4] times the Sun's radius. From this enlarged photosphere, it is radiating 186[2] times the Sun's luminosity at an effective temperature of 4,126 K.[2] It has a magnitude 12.02 visual companion at an angular separation of 209.30 arc seconds along a position angle of 298°, as of 2012.[10]
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Naming
In Chinese, 外屏 (Wài Píng), meaning Outer Fence, refers to an asterism consisting of μ Piscium, δ Piscium, ε Piscium, ζ Piscium, ν Piscium, ξ Piscium and α Piscium. Consequently, the Chinese name for μ Piscium itself is 外屏四 (Wài Píng sì, English: the Fourth Star of Outer Fence.)[11]
References
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