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