Indian Space Agency (ISRO) space observation satellite Astrosat begins operations

[samlove]

After evaluation of spacecraft star sensor performance ASTROSAT begins study of Cygnus X-1.

Cygnus X-1 is a well-known galactic X-ray source, thought to be a black hole,in the constellation Cygnus.






Cygnus X-1 is a well-known galactic X-ray source, thought to be a black hole,in the constellation Cygnus.
Cygnus X-1 - Wikipedia, the free encyclopedia