Hemisphere:  Northern  ·  Contains:  B168  ·  Cocoon Nebula  ·  Cocoon nebula  ·  IC 5146  ·  IC5146  ·  Sh2-125  ·  VdB147
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IC 5146 - Cocoon Nebula, 


            Paul Ricker
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IC 5146 - Cocoon Nebula

Imaging telescopes or lenses: Astro-Tech AT8RC

Imaging cameras: ZWO ASI183MM-Pro

Mounts: iOptron iEQ45 Pro

Guiding telescopes or lenses: Astro-Tech AT8RC

Guiding cameras: QHYCCD QHY5-III 178M

Software: PhD2  ·  StarTools  ·  Deep Sky Stacker (DSS)  ·  Photoshop CC  ·  Astro Photography Tool - APT Astro Photography Tool

Filters: ZWO new B  ·  ZWO new G  ·  ZWO new R  ·  ZWO new L

Accessory: ZWO EAF  ·  ZWO EFW Mini  ·  Teleskop Service TSFLIP Flip Mirror and Off Axis Guiding System

Dates:Sept. 18, 2020

ZWO new B: 6x300" (gain: 100.00) -5C bin 2x2
ZWO new G: 6x300" (gain: 100.00) -5C bin 2x2
ZWO new L: 6x300" (gain: 100.00) -5C bin 2x2
ZWO new R: 6x300" (gain: 100.00) -5C bin 2x2

Integration: 2.0 hours

Darks: ~36

Flats: ~1

Avg. Moon age: 1.21 days

Avg. Moon phase: 1.64%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 3916987

RA center: 21h 53' 23"

DEC center: +47° 15' 11"

Pixel scale: 0.618 arcsec/pixel

Orientation: 92.095 degrees

Field radius: 0.282 degrees

Resolution: 2732x1820

Locations: Champaign-Urbana Astronomical Society dark site, Champaign, IL, United States

Data source: Traveller


The Cocoon Nebula, IC 5146 in Cygnus. A bit like the Trifid, this is a combination reflection/emission nebula with lots of dust but also hydrogen gas being ionized by young stars. It's embedded in a long dark nebula called Barnard 168 that extends well past this frame.



Paul Ricker
License: None (All rights reserved)

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IC 5146 - Cocoon Nebula, 


            Paul Ricker