Comet C/2009 P1 (Garradd) at M 15

 

Technical Details:

Optics: 12" ASA Astrograph at F/6.8
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Astronomik LRGB filters
Dates/Times: 2 August 2011
Location: Rozhen
Exposure Details: L = 40 min., R = 30 min., G = 30 min.,B = 30 min.
Subexposures: 2 minutes
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS

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