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NGC 6888, also known as the Crescent Nebula, is an emission nebula in Cygnus. It has an apparent size of 12 x 18 arc minutes and is located at a distance of about 5,000 light years. The glow comes from the stellar wind from a Wolf-Rayet star which is colliding and energizing the surrounding gas from previous ejections. Date: July 6-7, 2010 Location: Blue Mountain Vista Observatory, New Ringgold PA Optics: Starizona Hyperion telescope, 12.5 inch/2529 mm focal length Mount: Paramount ME Camera: STL 11000 Guiding: self guided Exposure: Ha 13 x 10 min - Total 2.2 hrs Processing: Image acquisition using CCD Autopilot. Initial processing was done using Maxim DL with subsequent processing with Photoshop. . |
Blue Mountain Vista Observatory New RInggold PA |
NGC The Crescent Nebula |