Cygnus X-1
[ eks-wuhn ]
nounAstronomy.
a strong x-ray source in the constellation Cygnus, consisting of a binary system of which one component may be a black hole.
Words Nearby Cygnus X-1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use Cygnus X-1 in a sentence
The temperature of Cygnus X-1 from Hawking radiation is roughly a billionth of a degree above absolute zero.
Lower-mass black holes, such as Cygnus X-1, are the remnants of very massive stars; those are a story for another day.
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