M 27 (Dumbbell Nebula)

 

Technical Details:

Optics: 12" ASA Astrograph at F/6.8
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Astronomik RGB filters + Baader 8 nm Ha and O III filters
Dates/Times: 23 and 24 June, 6 and 7 July 2011
Location: Varna, Avren
Exposure Details: R = 60 min., G = 60 min.,B = 60 min., Ha = 360 min, O III = 360 min
Subexposures: RGB = 5 minutes, Narrowband = 30 minutes
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS
     
 

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