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 This
            complex cluster of  nebulosity is one of the most dramatic assemblages
            of emission nebulas in the sky. This deep image which is a multiplied
            stack of two sky fog limited images from a dark site contains
            many small patches and tendrils to feast on. The dramatic curving
            arc on the right is IC405, which has some blue nebulosity at
            its core. Lower left of center is IC410 surrounding the cluster
            NGC1893. Upper left is IC417 and Sharpless 234. The tiny disconnected
            red nebula on the left side of the image is NGC1931 cluster with
            the nebula Sharpless 237. The field here is 4.5 x 6.5 degrees
            wide.
Instrument:  8" f/1.5 Celestron Schmidt Camera
Platform:  Homemade GEM
Film:  Kodak Supra 400
CCD Autoguider: ST4
Exposure:  2x8mins
Filters:  NONE
Location:  Happy Jack, Arizona
Elevation:  6800 ft.
Sky:  Seeing 8/10, Transparency 10/10
Outside Temperature:  5 C
Processing: Photoshop, PixInsight Pro.
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