Cygnus X-1
Cygnus X-1 is a galactic X-ray source located in the northern constellation Cygnus. The X-ray source is believed to be a stellar mass black hole, one… Read More »Cygnus X-1
Variable Stars
Deneb
Deneb, Alpha Cygni, is the brightest star in Cygnus constellation and the most distant of all first magnitude stars. It is a luminous blue supergiant.… Read More »Deneb
Altair
Altair, or Alpha Aquilae, is the brightest star in the constellation Aquila, the Eagle. It lies only 16.7 light years from Earth. It has a… Read More »Altair
Vega
Vega, Alpha Lyrae, is the brightest star in Lyra constellation and the fifth brightest star in the sky. It is only fainter than Sirius in… Read More »Vega
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