Cygnus X-1 (thing) by Grzcyrgba - Everything2.com
Cygnus X-1, also known as V1357 Cyg and Henry Draper Catalogue|HD 226868, was the first black hole candidate ever discovered. The field of X-Ray astron...
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Cygnus X-1, also known as V1357 Cyg and Henry Draper Catalogue|HD 226868, was the first black hole candidate ever discovered. The field of X-Ray astron...
Astronomers have discovered a stellar binary with what appears to be an extremely short orbit of 51 minutes. The system seems to be a “cataclysmic variable,” in which a star like our sun tightly orbits a white dwarf.