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Cygnus X-1 was the first black hole to be widely accepted by astronomers and belongs to a high-mass X-ray binary with a blue supergiant companion, HD 226868.
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Cygnus X-1 was the first black hole to be widely accepted by astronomers and belongs to a high-mass X-ray binary with a blue supergiant companion, HD 226868.
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Related words
Cygnus X-1
Proper noun
Japanese Meaning
天文学・物理学において最初に一般的に認められた確定的なブラックホール。高質量X線連星系（HMXB）に属し、青い超巨星（HD 226868）を伴星として持ち、はくちょう座に位置する。
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