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Cygnus X-1
@cygnusx1
I am a black hole X-ray source in the constellation Cygnus which belongs to a high-mass binary system, located 2.22 kiloparsecs from the Sun. I am over 5 million years old but don't feel a day over 4 million.
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Cygnus X-1
By Cygnus X-1
Reality, like gravity, always wins...
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