- Exposure time: 135 minutes (9x
900s)
- Processing: Nebulosity
(pre-processing, stacking & DDP); Adobe
Photoshop CS2 (post-processing)
- Lens/telescope: Takahashi FSQ-106ED (4.2")
quadruplet ED refractor at f/5 with Baader
H-alpha 7 nm narrowband filter
- Camera: QHY8 one-shot colour
CCD (Gain: 0, Offset: 115)
- Mount: Astro-Physics Mach1 GTO
- Guidescope: Vixen 70/400 mm +
ST-4
- Location: Zoetermeer, The
Netherlands
- Date: July 4 - 5, 2009
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