Magnitude 5.03 | ||
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20 Cygni is a star in the constellation Cygnus. Its apparent magnitude is 5.03. Located around 62.07 parsecs (202.4 ly) distant, it is a red giant of spectral type K3III, a star that has used up its core hydrogen and is expanding.
20 Cyg is notable for being listed as one of the least variable stars in the Hipparcos catalogue, changing their brightness by no more than 0.01 magnitude.
References
20 Cygni Wikipedia(Text) CC BY-SA