ABSTRACT
CH Cygni (CH Cyg) is one of the most enigmatic SYMBIOTIC STARS. Once known as a short-period semiregular variable and standard for the M6 III spectral type, the system began an unusual series of eruptions in 1964
CH Cygni (CH Cyg) is one of the most enigmatic SYMBIOTIC STARS. Once known as a short-period semiregular variable and standard for the M6 III spectral type, the system began an unusual series of eruptions in 1964