Cygnus X (music group)
Cygnus X was a trance music project from Germany named after the famous X-ray binary star Cygnus X-1. It began as a collaboration between Matthias Hoffmann and Ralf Hildenbeutel, who later left.Cygnus X-1 (disambiguation)
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Cygnus X-3
Cygnus X-3 is a high-mass X-ray binary ( HMXB), one of the stronger binary X-ray sources in the sky. It is often considered to be a microquasar, and it is believed to be a compact object in a binary system which is pulling in a strea ...