These nebulae are part of a much bigger nebula called the Veila Super Nova Remnant. It is a cloud of heated and ionized gas and dust in Cygnus and constitutes the visible portions of the Cygnus Loop. The source supernova exploded some 5,000 to 8,000 years ago, and the remnants have since expanded to cover an area roughly 3 degrees in diameter (about 6 times the diameter, or 36 times the area, of the full moon).
7/9/2013
25x300sec Subs, Darks, Flats and Bias
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