NGC 6888 (Crescent Nebula)

Technical Details:

Optics: 12" ASA Astrograph at F/6.8
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Astronomik RGB filters, Baader Ha 8nm filter, O III 7 nm filter
Dates/Times: Narrowband July 2010, RGB 25 August 2011
Location: Varna, Rozhen
Exposure Details: Ha = 240 min, O III= 240 min, R = 30 min., G = 30 min.,B = 30 min.
Subexposures: RGB = 10 minutes, Ha = 30 minutes
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS
     
 

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