- Exposure time: 162.5 minutes (13x
750s)
- Processing: Nebulosity (pre-processing, stacking & DDP); Adobe
Photoshop CS4 (post-processing)
- Lens/telescope: Takahashi FSQ-106ED (4.2")
quadruplet ED refractor at f/3.6
- Camera: QHY8 one-shot colour
CCD (gain: 0, offset: 115)
- Mount: Astro-Physics Mach1 GTO
- Guidescope: Vixen 70/400 mm +
ST-4
- Location: Etoile St. Cyrice, Hautes-Alpes, France
- Date: January 11 - 12, 2010
- Notes:
This
image is not sharp over the entire field of view: there are elongated
stars in the bottom right corner. Probably due to incorrect back focal
distance from the reducer.
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