+**Cygnus X-1** is a potent [X-ray Source](/wiki/x-ray_source) in the Cygnus constellation. This binary system, featuring a massive star and an unseen companion, is considered one of the strongest candidates for a stellar [Black Hole](/wiki/black_hole), devouring material in its embrace.
+## See also
+- [Binary Star](/wiki/binary_star)
+- [Accretion Disc](/wiki/accretion_disc)
+- [X-ray Astronomy](/wiki/x-ray_astronomy)
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