Northern Cross
The Northern Cross is a prominent asterism formed by the brightest stars in the constellation Cygnus.
Cygnus X-1
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 created from the collapse of a massive star about 5 to 6 million years ago. It is one of the strongest sources of X-ray emissions discovered and was the … [Read more…]
Deneb
Deneb, Alpha Cygni, is the brightest star in Cygnus constellation and the most distant of all first magnitude stars. Deneb is a luminous blue supergiant. It is one of the stars that form the Summer Triangle, along with Altair in Aquila constellation and Vega in Lyra. Deneb is also the brightest star of the Northern … [Read more…]