IC 5146 (Sh2-125, LBN 424) / Cr 470 (Lund 1001) aka "The Cocoon" Bright Nebula / Open Cluster in Cygnus

Located at: RA 21 hours 53 minutes 29 seconds, Dec +47 degrees 15 minutes 41 seconds

Size: 11' x 10' / 20' Magnitude: -- / 7.2 Class: Emission (Sharpless) 2 2 3 / III 2 p n

North is up

West to the right

Telescope:

14.5" f5 Newtonian reflector

Camera:

 ST-8XME, self-guided, binned 1x1, temp -10c & -15c, camera control MaxIm DL 4.56

Image:

Lumicon Red filter, 660 minutes (66 x 10 minute subs), 08/29/30 & 09/13/14/2013; seeing 3.3-5.0 FWHM per CCDStack

Processing:

CCDStack 2.75.4973.15338, Photoshop CS5.1

Location:

 Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s)

Notes: IC 5146 is more famously known as the "Cocoon" nebula. This wide field image (by Adam Block/NOAO/AURA/NSF) well shows its position in the Milky Way at the end of the dark lane B 168. According to "Star Clusters", by Brent Archinal and Steven Hynes, the open cluster Collinder 470 is 'involved' with IC 5146, but is not equal to IC 5146, and is cataloged as a separate object. See the 8" version.

From the NGC / IC Project:

NO Contemporary Visual Observation(s) for IC 5146