Tags: Star.

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 a star that has used up its core hydrogen and is starting to expand. The star is an RS Canum Venaticorum variable meaning that it is a close binary star whose components have star-spots which cause variations in brightness.

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