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Contains:  Cocoon nebula, IC 5146
Getting plate-solving status, please wait...
IC5146 - Cocoon Nebula in HaRGB, 


            Simon Todd
IC5146 - Cocoon Nebula in HaRGB
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IC5146 - Cocoon Nebula in HaRGB

Technical card

Dates:Sept. 25, 2018Sept. 27, 2018Sept. 29, 2018Oct. 20, 2018Oct. 22, 2018Oct. 26, 2018Oct. 28, 2018Oct. 29, 2018Nov. 14, 2018Nov. 17, 2018Nov. 18, 2018Nov. 30, 2018Dec. 7, 2018Dec. 9, 2018Dec. 12, 2018Dec. 13, 2018Dec. 27, 2018Jan. 4, 2019

Baader Blue 36mm: 66x150" (gain: 8.00) -20C bin 1x1
Baader Green 36mm: 56x150" (gain: 8.00) -20C bin 1x1
Baader Ha 36mm 7nm: 101x300" (gain: 11.00) -20C bin 1x1
Baader Red 36mm: 56x150" (gain: 8.00) -20C bin 1x1

Integration: 15.8 hours

Darks: ~101

Flats: ~101

Bias: ~101

Avg. Moon age: 13.26 days

Avg. Moon phase: 59.24%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details job: 3276160

RA center: 21h 53' 25"

DEC center: +47° 16' 8"

Pixel scale: 0.619 arcsec/pixel

Orientation: 270.334 degrees

Field radius: 0.568 degrees

Resolution: 5514x3630

Data source: Backyard


Located in the constellation of Cygnus lies the Cocoon Nebula (IC5146), this nebula is an emission nebula. This is my first ever attempt to image this target, again like previous targets I am limited to around 2.5 hours per night on this target due to trees and the house getting in the way.



Simon Todd
License: None (All rights reserved)


  • IC5146 - Cocoon Nebula in HaRGB, 


            Simon Todd
  • Final
    IC5146 - Cocoon Nebula in HaRGB, 


            Simon Todd

Sky plot

Sky plot


IC5146 - Cocoon Nebula in HaRGB, 


            Simon Todd