IC 5146
Cocoon Nebula in Cygnus

RA: 21h 53m Dec: +47 16' Mag: 10.10 Size (ly):15, Distance (ly):4,000

Click image for a larger view

   IC 5146, also known as the Cocoon Nebula, is located in the constellation of Cygnus. This colorful nebula is comprised of emission, reflection and absorption nebulosities. Within the nebula structure are a cluster of newly developing stars. The energy from the bright mag 9.7 star in the center which formed about 100,000 years ago is believed to be the source for both the reflection and emission nebulas as well as opening the center of the molecular cloud structure.

Location & Date Backyard, Abbott Observatory - May 19,20,21, 2009
Temperature - Low 50's F
Telescope Deep Sky Instruments RC10C , F/7.3 on a Losmandy G11 Gemini, Prime Focus, Image scale 0.82 arcsec/pixel
Camera SBIG ST-2000XM w/CFW8, AO8
Astrodon Tru Balance LRGB Filters
CCD temp -15C
Exposure Times (L) 28 X 10, (R) 14x10, (G) 12x10,(B) 12x10 Minutes, Bin 1x1
Other Information Image acquisition/focus/guiding/dither - CCD Autopilot4 w/CCDSoft/TheSky6/PinPoint
Image Processing * CCD Stack- Calibration, Normalize, Alignment, Mean Combine, Deconvolution, Mild DDP
* Adobe CS4 - L+RGB combine, Levels, Curves, Sharpening, Cropping, NR, JPEG conversion

© 2009 Michael A. Siniscalchi