IC5146, B168 -The Cocoon Nebula

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IC5146, B168
Constellation: Cygnus - the Swan
Type: Emission Nebula/Dark Nebula
Position: RA21h53m30s
Exposure: Composite of two images using LRGB technique.
RGB: Taken 6-12-04.  60 min. on Kodak Elite Chrome 200.
Luminance: Taken 6-12-04.  90 minutes on hypered Tech Pan.
Both exposures were taken through a Lumicon deepsky filter.
Processing: Images were aligned in Registar, combined in Photoshop. 
Levels, curves adjusted in Photoshop.
Equipment: RGB and Luminance were taken immediately  following each other and used identical equipment:
Orion 120 ST f/5 refractor.
Televue field flattener.
Lumicon deepsky filter.
Losmandy G-11 Gemini mount.
ST-4 autoguider on a Celestron guidescope.
Notes: The Cocoon  is the red emission nebula.  B168 is the dark nebula leading off to the right of the Cocoon.  There is a subtle blue reflection component to this nebula that didn't show up through the deepsky filter.

Locator Chart

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Chart copyright Steven Tuma and Dean Williams - Deepsky 2002

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