NGC 7331, Deer Lick Group & Stephan's Quintet





  • Exposure time: 120 minutes (12x 600s)
  • Processing: Nebulosity (pre-processing, stacking & DDP); Adobe Photoshop CS4 (post-processing)
  • Lens/telescope: INTES 150 mm (6") MK-69 at f/6
  • Camera: QHY8 one-shot colour CCD
  • Mount: Astro-Physics Mach1 GTO
  • Guidescope: Vixen 70/400 mm + ST-4
  • Location: Etoile St. Cyrice, Hautes-Alpes, France
  • Date: August 23 - 24, 2009

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