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31 Comae Berenices

Star in the constellation Coma Berenices From Wikipedia, the free encyclopedia

31 Comae Berenices
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31 Comae Berenices (31 Com) is a yellow giant star in the constellation Coma Berenices. Its apparent magnitude is about 4.9 and slightly variable. It is visible to the naked eye. In 1997, Klaus G. Strassmeier et al. announced their discovery that the star is a variable star.[1] It was given its variable star designation, LS Comae Berenices, in 2003.[7] It is a rare FK Comae Berenices variable, a variable star that spins rapidly and has large starspots on its surface.[6] It is currently in the Hertzsprung gap and its outer envelope has just begun convection.[4] In 1989 it was given as a spectral standard for the class G0IIIp.[8]

Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...

31 Com is the north galactic pole star, and occasionally goes by the informal name Polaris Galacticum Borealis, coined by Jim Kaler.[9]

In Chinese astronomy, 31 Comae Berenices is called 郎將, Pinyin: Lángjiāng, meaning Captain of the Bodyguards, because this star is marking itself and stand alone in Captain of the Bodyguards asterism, Supreme Palace enclosure mansion (see : Chinese constellation).[10]

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