Howard's Astronomical Adventures
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IC5146 : The Cocoon Nebula in Cygnus

A ball of fire among the countless stars of the milkyway. IC5146 is both a emission and a reflection nebula. The dark nebula that appears to stream off it and to the right is B168.

Click image or here for larger version (1440 x 954, 850kb).

Photograph Information
LocationOkie-Tex Star Party, Kenton OK
TelescopeAP130 @ f4.5 using AP telecompressor.
CameraCanon 350D, Hutech modified type I
ExposureSum of 28, 7 minute exposures at ISO 800
Notes65°F, 35%rh, good seeing and very good transparency

Initial RAW conversion, slight asinh stretch in IRIS.
Calibrated with bias, dark and flat frames.
Noise reduction in PixInsight LE 1.02 Additional adjustments in Photoshop CS2


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