IC 5146 - Cocoon Nebula                       (image above is reduced-size | other sizes:  medium , original)

Distance:  3,300 light years

Telescope Takahashi FS-60C @ f/6.2
Mount Takahashi EM200 Temma II
Camera QSI 540wsg @ -15C
Filters Astrodon Ha (3nm), Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 8x15min Ha; 2x5min ea RGB (all bin1x1); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)

27 December 2013, 6 January 2014 - Las Cruces, NM

Published 21 Mar 14:
     - 17th slot in "March 2014 Night Sky Photos"

Imaged over 2 nights (Cygnus area). This image is Ha_HaRGB, where Ha:R (80:20) was used for the Red channel, and Ha for Luminance. The Ha filter is bringing out some dusty areas around IC 5146.

Copyright  Jeffrey O. Johnson

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