IC 443 (Jellyfish Nebula) in mapped color

Combination of two images taken with two different focal lenghts of the ASA 12" Astrograph


Technical Details:

Optics: 12" ASA Astrograph at F/6.8 and F/3.6
Mount: ASA DDM 85
Camera: SBIG STL-11000M
Filters: Baader 8nm narrowband filters
Dates/Times (F/6.8): January 2011
Dates/Times (F/3.6): November 2010
Location: Home Observatory Varna
Exposure Details (F/6.8): SII = 480 min., Ha = 480 min., OIII = 480 min.
Exposure Details (F/3.6): SII = 50 min., Ha = 50 min., OIII = 50 min.
Subexposures (F/6.8): 30 minutes
Subexposures (F/3.6): 10 minutes
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS

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