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Contains:  Cocoon nebula, IC 5146
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IC 5146: Cocoon Nebula (Speed Run Image 2), 


            Chris Sullivan
IC 5146: Cocoon Nebula (Speed Run Image 2)

IC 5146: Cocoon Nebula (Speed Run Image 2)

Technical card

Resolution: 5147x3383

Dates:Nov. 17, 2017Nov. 20, 2017

Frames: 60x210" (gain: 10.00)

Integration: 3.5 hours

Avg. Moon age: 15.22 days

Avg. Moon phase: 2.30%

Bortle Dark-Sky Scale: 8.00 job: 1827636

RA center: 328.364 degrees

DEC center: 47.277 degrees

Pixel scale: 0.590 arcsec/pixel

Orientation: 345.058 degrees

Field radius: 0.505 degrees

Data source: Backyard


This is the second of three images I did on my recent "speed run". I was only able to get 3.5 hours in total as poorly timed clouds interfered with imaging on the other nights I did my speed run. For an object like this, that may be plenty for those who live under dark skies, but mine could hardly be more light-polluted. As such, I think it would have really benefited from more data. I definitely want to do this one again with the monochrome camera and the refractor next summer - the wider field of view would show off the darker nebula much better.



Chris Sullivan
License: None (All rights reserved)

Sky plot

Sky plot


IC 5146: Cocoon Nebula (Speed Run Image 2), 


            Chris Sullivan