Wednesday, December 9, 2015

The constellation pictured is known as Cygnus. Cygnus is the sixteenth largest constellation. Cygnus contains ten stars total. There are two meteor showers associated with this constellation. Cygnus is a constellation located in the northern hemisphere along the Milky Way. In Latin, Cygnus means swan. This constellation contains an asterism known as the Northern Cross. The constellation is among the 48 constellations that was discovered by the second century astronomer Ptolemy. This constellation contains a star called Denab. This star is one of the brightest in the sky and is part of the Summer Triangle. In Arabic, Denab means "the tail." This constellation is also known very well for having X-ray sources. The Cygnus X-1 is a binary containing X-ray containing a supergiant and unseen possible black hole.  This constellation lies 1,500 light years away from the Earth.  
http://www.constellation-guide.com/constellation-list/cygnus-constellation/

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