Equipment and other photo info:
Picture taken on July 10th and 11th, 2010. Skaywatcher ED80 @ f/6, WO FF/FR 0.8x, QHY8, TS OAG9mm, QHY5 guiding camera Exposure time: 19x900sec for H-alpha Mount: EQ6 Vis upgreded to EQ6 SynScan
Processing software: Nebulosity, PixInsight 1.0, Photoshop CS2
Object info:
H-alpha of the NGC6888. Colour version of the same image, http://www.hrastro.com/NGC6888CrescentNebula/
More information about this object at: http://www.hrastro.com/NGC6888CrescentNebula/