Cygnus X-1 English

Meaning Cygnus X-1 meaning

What does Cygnus X-1 mean?

Cygnus X-1 properNoun

— A placename.

— (astronomy, physics, star) The first generally accepted and confirmed black hole. A black hole in a high-mass X-ray binary (HMXB) with a blue supergiant companion (HD 226868), located in the constellation Cygnus.

— (astronomy, physics, star) The high-mass X-ray binary star system containing this black hole and blue supergiant star.