はくちょう座X-1
1. Cygnus X-1Cygnus X-1 (abbreviated Cyg X-1) is a well-known galactic X-ray source in the constellation Cygnus. It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources seen from Earth, producing a peak X-ray flux density of 2.3×10 WmHz. Cygnus X-1 was the first X-ray source widely accepted to be a black hole candidate and it remains among the most studied astronomical objects in its class.
Read “Cygnus X-1” on English Wikipedia
Read “はくちょう座X-1” on Japanese Wikipedia
Read “Cygnus X-1” on DBpedia
Read “Cygnus X-1” on English Wikipedia
Read “はくちょう座X-1” on Japanese Wikipedia
Read “Cygnus X-1” on DBpedia
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