Aeroport de Nantes-Atlantique

Cygnus 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{e|−23} Wm−2Hz−1 (2.3{e|3} Jansky). Cygnus X-1 was the first X-ray source widely accepted to ...
Found on http://en.wikipedia.org/wiki/Aeroport_de_Nantes-Atlantique
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