IC 1311 in Cygnus



Scope: Megrez II APO 80mm  at f/4.3,  Location: Dos Picos Park, Ramona, CA  6 October,  2007,   Camera: Artemis285

Exposure: 8 x 8 min H-Alpha (1x1), 8 x 2 min RGB Exposures (2x2). 

Processing: Images were captured  with Artemis Capture (as FITs).  Aligned/stacked and dark subtracted in Astroart with Sigma Combine.   H-Alpha  and Color channels were scaled and  color balanced in Astroart.  Channels were co-registered in Astroart.  Luminance construction consisted of the H-Alpha exposure.  Curves and Levels applied in Photoshop to the Luminance construction to optimize object features.  Final LRGB combine was done in Photoshop using Luminance Layering (or LLRGB). A color adjustment made to correct the color at low RGB signal levels.  A light background noise reduction was applied in PixInsight LE (SBNR)  Selective sharpening was applied to nebula features in Photoshop with a layer mask.  Final Image size is approximately 1044x1392

 North is up in this image. The field in this image is from the constellation of Cygnus. IC 1311 is the designation for a star cluster with nebulosity. The main core of the cluster is a small dense knot of stars toward the right of center in this image. The general region is rich with hydrogen emission as evidenced by the red nebulosity. The cluster is located approximately 4,000 light years from Earth. The Horizontal FOV is 90'.

Image center is located approximately - Equatorial 2000: RA: 20h 13m 34s Dec: +4059'28"


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