Crescent Nebula - NGC6888 is an emission nebula in the constellation Cygnus about 5000 light years
away. It was discovered by Friedrich Wilhelm Herschel in 1792.
This image is composed of 20 10minute exposures shot with QHY8 CCD Camera, and Orion 190mm
Maksutov Newtonian from my backyard observatory in San Antonio, Texas on 07/29/14.
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