IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470. It shines at magnitude +10.0/+9.3/+7.2. Its celestial coordinates are RA 21h 53.5m, dec +47° 16′. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years. WIKIPEDIA
Imaging Data:
Provo, Utah
Bortle 5 sky
Date: 7/20 & 21/2023
Exposure = 180 seconds x 234 of which 65 were used for a total of 3h 15m
Binning = 1×1
Camera Temperature = 0 deg C
Camera Gain = 100
Filter = IDAS-NBZ Narrowband Filter
Camera: ASI2600MC PRO in Hyperstar IV configuration.
Telescope: Celestron 1100 Edge HD
Mount: 10Micron GM1000HPS
Processed with DSS, PI and PS