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TitleThe First Black Hole DescriptionSince its discovery in 1962, the X-ray binary star Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when a combination of space-based, X-ray observations by the Chandra X-ray Observatory and optical, ground-based observations by the Digitized Sky Survey led to the conclusion that it was a black hole, the first such identification. This is a Chandra X-ray image of Cygnus X-1. FacilityChandra X-ray Observatory Subject
Spectral TypeX-ray CreditsNASA/CXC TypeObservation Associated LessonX-Ray History |
