Location & Date	Backyard, Abbott Observatory- Long Island, NY,  August 2022
Telescope	Orion ED80 F/7 APO, Moonlite focuser, iOptron GEM45G, Pegasus Falcon rotator Image scale 2.54 arcsec/pixel
Camera	SBIG ST-2000XM Baader  Ha R G B  filters CCD temp -15°C
Exposures	Ha- 12 x 10m  Red- 15 x 3m  Green - 15 x 3m  Blue- 12 x 3m  Bin 1x1 for each panel
Planning & Acquisition	Sequence Generator Pro Mosaic tool - 2-panel mosaic
Processing	Astro Pixel Processor -  Calibration, Normalize, Mosaic panel assembly Adobe PS -  Ha+RGB combine, Color adjustments, Noise reduction, Sharpen, JPEG conversion RC-Astro Star XTerminator, Noise Xterminator This is a 2-panel mosaic to show the trailing dark nebula Barnard 168

Wikipedia-

IC 5146 (also Caldwell 19, Sh 2-125, Barnard 168, 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.

When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.

IC 5146 is a stellar nursery where star-formation is ongoing. Observations by both the Spitzer Space Telescope and the Chandra X-ray Observatory have collectively identified hundreds of young stellar objects. Young stars are seen in both the emission nebula, where gas has been ionized by massive young stars, and in the infrared-dark molecular cloud that forms the "tail". The most-massive stars in the region is BD +46 3474, a star of class B1 that is an estimated 14±4 times the mass of the sun.

IC 5146 position shown relative to our location (Sun) in the Milky Way Galaxy

Age: 426 million years

Galatic Longitude: 94.4

Galatic Latitude: -5.5

Distance from Galatic Plane:210 ly below the galatic plane

Above image and info provided by Our Galaxy 3D Atlas application and used with permission by Otherwise