KY Cyg. In: VSX. AAVSO, abgerufen am 19. Januar 2019.
arxiv.org
Emily M. Levesque, Philip Massey, K. A. G. Olsen, Bertrand Plez, Eric Josselin, Andre Maeder, Georges Meynet: The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought. In: The Astrophysical Journal. 628. Jahrgang, Nr.2, 2005, S.973–985, doi:10.1086/430901, arxiv:astro-ph/0504337, bibcode:2005ApJ...628..973L.
doi.org
Emily M. Levesque, Philip Massey, K. A. G. Olsen, Bertrand Plez, Eric Josselin, Andre Maeder, Georges Meynet: The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought. In: The Astrophysical Journal. 628. Jahrgang, Nr.2, 2005, S.973–985, doi:10.1086/430901, arxiv:astro-ph/0504337, bibcode:2005ApJ...628..973L.
harvard.edu
ui.adsabs.harvard.edu
Emily M. Levesque, Philip Massey, K. A. G. Olsen, Bertrand Plez, Eric Josselin, Andre Maeder, Georges Meynet: The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought. In: The Astrophysical Journal. 628. Jahrgang, Nr.2, 2005, S.973–985, doi:10.1086/430901, arxiv:astro-ph/0504337, bibcode:2005ApJ...628..973L.