27 Cygni

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27 Cygni
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Cygnus
Right ascension 20h 06m 21.76767s [1]
Declination +35° 58′ 20.8865″ [1]
Spectral typeK0IV

27 Cygni is a star in the constellation Cygnus. Its apparent magnitude is 5.36. Located around 23.95 parsecs (78.1 ly) distant, it is a K-type subgiant of spectral type K0IV,[1] a star that has used up its core hydrogen and is starting to expand. The star is an RS Canum Venaticorum variable,[1] meaning that it is a close binary star whose components have star-spots, which cause variations in brightness.


  1. ^ a b c d "V2008 Cygni". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 10 January 2014.