The Cocoon Nebula - IC 5146
From Wikipedia: IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection[2]/emission[3] 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.[4] It shines at magnitude +10.0[5]/+9.3[3]/+7.2.[6] 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.[2][5] The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago;[7] the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.[6]
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.
This image was made on my own gear at the Westport Astronomical Society. (
www.was-ct.org)
Lights: 59 @ 90s 111 Gain, -10C
Flats: 50
Darks: 50
Bias: 180
Gear:
Telescope: Astrotech 92 mm APO Refractor
Guide Scope: 60mm Astromania
Imaging Camera: ZWO ASI 183mcPRO
Guide Camera; ZWO ASI 120mini
Mount: Celstron AVX
Imaging Software: AstroImager
Software: Pixinsight, Photshop, NIK Sliver Efex 2.0
Guiding software: PHD 2
#cocoonnebula
#ic5146
#nebula
#hydrogennebula
#hydrogenemission
#deepspaceobject
#dso
#CYGNUS
#westportastronomicalsociety
#luminantpix
#celestronavx
#ASIWEEK
#apod
#apom
#astrotech92
#zwoasi183mcpro
Comments