31 Comae Berenices

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31 Comae Berenices
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Coma Berenices
Right ascension 12h 51m 41.92207s[1]
Declination +27° 32′ 26.5754″[1]
Spectral type G0IIIp[1]
Other designations
LS Com, BD+28 2156, FK5 1332, HD 111812, HIP 62763, HR 4883, SAO 82537

31 Comae Berenices (31 Com) is a yellow giant star in the constellation Coma Berenices. Its apparent magnitude is 4.94. It is a rare FK Comae Berenices variable, a variable star that spins rapidly and has large starspots on its surface.[1]

31 Com is the north galactic pole star, and occasionally goes by the informal name Polaris Galacticum Borealis, coined by Jim Kaler.[2]


  1. ^ a b c d "SIMBAD entry". Retrieved 2015-12-02. 
  2. ^ "Polaris Galacticum Borealis". Retrieved 2015-12-02.