On the nature of high reddening of Cygnus OB2 #12 hypergiant

O. V. Maryeva, E. L. Chentsov, V. P. Goranskij +4

To explain the nature of the high reddening (Av~10 mag) towards one of the most luminous stars in the Galaxy - Cyg OB2 #12 (B5 Ia-0), also known as MT304, we carried out spectro-ph…