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Which was the first black hole candidate to be discovered? A) m13 B) cygnus c-1 C) cassiopeia a D) sagittarius A*
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Which was the first black hole candidate to be discovered?

A) m13
B) cygnus c-1
C) cassiopeia a
D) sagittarius A*

User Praytic
by
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1 Answer

4 votes
I believe the answer is B) Cygnus X-1

Hope this helps!
User Charles Finkel
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