The spectrum of VY Canis Majoris is always that of a large-luminosity M-course star. The hydrogen strains, even so, have P Cygni profiles in good shape for luminous blue variables. The spectrum is dominated by TiO bands whose strengths counsel a classification of M5. The H-alpha (Hα) line just isn't https://aw92665.popup-blog.com/14700882/the-ultimate-guide-to-aw