العقرب X-1: الفرق بين النسختين

<ref>{{Citation | last=Giacconi | first=R. | last2=Gursky | first2=H. | last3=Paolini |first3=F.R. | last4=Rossi | first4=B.B. | title=Evidence for X-rays from sources outside the solar system | journal=Phys. Rev. Lett. | volume=9 | pages=439–443 | year=1962}}</ref> The X-ray [[flux]] varies day-to-day, and is associated with an [[visible light|optically]] visible [[star]], V818 Scorpii that has an [[apparent magnitude]] which fluctuates between 12-13.<ref name="shklovskii">{{cite book | author = Shklovskii, Iosif S. | title = Stars: Their Birth, Life, and Death | year = 1978 | publisher = W.H. Freeman | isbn = 9780716700241 | url = http://books.google.com/books?id=exSFQgAACAAJ}}</ref>

 

[[en:Scorpius X-1]]