KY Cygni: Perbedaan antara revisi

| class = M3 Ia<ref name=white>{{cite journal|bibcode=1978ApJ...222..209W|title=Photoelectric two-dimensional spectral classification of M supergiants|journal=Astrophysical Journal|volume=222|pages=209|last1=White|first1=N. M.|last2=Wing|first2=R. F.|year=1978|doi=10.1086/156136}}</ref> (M3.5 Ia<ref name=gcvs1>KY Cyg, database entry, [http://www.sai.msu.su/groups/cluster/gcvs/gcvs/iii/iii.dat The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General Catalogue of Variable Stars], Sternberg Astronomical Institute, Moscow, Russia{{Webarchive|url=https://web. Accessed on line November 12, 2010archive.<org/web/20170620004609/ref> (M3.5 Ia<ref name=gcvs1>KY Cyg, database entry, [http://www.sai.msu.su/groups/cluster/gcvs/gcvs/iii/iii.dat The combined table of GCVS Vols I|date=2017-III and NL 6706-78 with improved coordinates, General Catalogue of Variable20 Stars]}}, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line November 12, 2010.</ref> (M3.5 Ia<ref name=gcvs1/>)