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NGC 7139 (Cep)
Technical data: 16"f/8-Hypergraph at f/12 for Luminance and a 15"f/5 Newtonian for color channels SBIG STL6303 with AOL for Luminance, ST10XME, CFW8 for color channels LRGB (L=10x600s; R=5x300s; G=5x300s; B=4x300s; RGB bin2, AstroDon filters were used) Authors: Bernd Flach-Wilken & Volker Wendel
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