Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  B168  ·  Cocoon Nebula  ·  Cocoon nebula  ·  IC 5146  ·  IC5146  ·  PGC167564  ·  PGC167581  ·  PGC167582  ·  PGC167590  ·  PGC167593  ·  PGC167597  ·  PGC167611  ·  PGC167613  ·  PGC167614  ·  PGC167615  ·  Sh2-125  ·  VdB147
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IC 5146, 



    
        

            Gary Imm
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IC 5146

Getting plate-solving status, please wait...
IC 5146, 



    
        

            Gary Imm
Powered byPixInsight

IC 5146

Imaging telescopes or lenses: Takahashi TOA-130NFB

Imaging cameras: ZWO ASI 6200 MM Pro

Mounts: Astro-Physics Mach1GTO

Guiding cameras: ZWO ASI 174 MM Mini

Software: Main Sequence Software Sequence Generator Pro  ·  Pixinsight  ·  Stark Labs PHD2 2.6.3

Filters: Chroma Red 2" unmounted  ·  Chroma Ha 3nm  ·  Chroma Blue 2" unmounted  ·  Chroma Green 2" unmounted

Accessory: ZWO M68 OAG  ·  ZWO EFW 2″X7  ·  Takahashi Flattener TOA-67  ·  Feathertouch Focuser Boss II Electronic Focusing Control


Dates:Oct. 25, 2020Oct. 26, 2020

Frames:
Chroma Blue 2" unmounted: 30x120" (1h) (gain: 0.00) -20C bin 1x1
Chroma Green 2" unmounted: 30x120" (1h) (gain: 0.00) -20C bin 1x1
Chroma Ha 3nm: 24x300" (2h) (gain: 100.00) -20C bin 1x1
Chroma Red 2" unmounted: 30x120" (1h) (gain: 0.00) -20C bin 1x1

Integration: 5h

Avg. Moon age: 9.70 days

Avg. Moon phase: 73.56%


Astrometry.net job: 4107791

RA center: 21h 50' 59"

DEC center: +47° 30' 21"

Pixel scale: 0.773 arcsec/pixel

Orientation: -0.188 degrees

Field radius: 1.217 degrees


Resolution: 9450x6255

Locations: Backyard (Mag 20.8 - Bortle 4.5), Onalaska, Texas, United States

Data source: Backyard

Description

This is a wide field shot of 2 degrees of sky in the Cygnus constellation. The highlight at lower left is IC 5146, an emission and reflection nebula 15 light years wide and located 4000 light years away. This nebula is nicknamed the Cocoon Nebula. Dark dust lanes wind their way throughout the nebula. Ionized hydrogen gas gives the nebula a reddish glow, with bluish dust-reflected starlight visible in some areas. The blue reflection nebula to the right of IC 5146 is vdB 147.

It looks as if the nebula is leaving a dark trail across the night sky. The trail is a long interstellar dust cloud (Barnard 16 which obscures the dense starfield behind it.

The nebula is the 19th entry in the Caldwell Catalog of deep sky objects.

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