what is the temperature of vy canis majoris
VY Canis Majoris VY Canis Majoris is a high-luminosity M star with an effective temperature of about 3,500 K, placing it at the upper-right hand corner of the Hertzsprung–Russell diagram and meaning it is a highly evolved star. During its main sequence, it would have been an O-type star[14] with a mass of 15 to 35 M☉.[4]