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


            Brice Blanc
IC5146 - The Cocoon nebula

IC5146 - The Cocoon nebula

Acquisition type: Electronically-Assisted Astronomy (EAA)

Technical card

Imaging telescope or lens:Takahashi TSA 102

Imaging camera:ASI 1600MM-Cooled

Mount:Orion EQ-G Atlas

Guiding telescope or lens:Skywatcher 80/400

Guiding camera:ASI ZWO 120MC Inkscape

Filter:Astronomik LRGB 1.25" Type IIc

Resolution: 4383x2922

Dates:July 30, 2019

Frames: 180x300"

Integration: 15.0 hours

Avg. Moon age: 27.68 days

Avg. Moon phase: 3.82% job: 3091266

RA center: 21h 53' 28"

DEC center: +47° 15' 57"

Pixel scale: 1.026 arcsec/pixel

Orientation: 90.292 degrees

Field radius: 0.750

Locations: Home, Entre Deux Guiers, Isere, France

Data source: Backyard


This one was a miss ! When I took the raws, the ASI camera settings were at high gain resulting in raws with completely burned star cores. After I realized it, I decided to take some shots at 30s and try the PI HDRComposition. This remarkably saved all those long exposures raws resulting in a very acceptable image. This one as all the others shots this summer are still suffering a lack of precise focus as this was manualy operated and as I had to sleep a bit at night... The weather is awful since last september and I installed a motorized focuser on the TSA. I hope to get better images soon with that device. Thanks for watching and please comment what you like or not. Cheers, Brice



Brice Blanc
License: None (All rights reserved)

Sky plot

Sky plot


IC5146 - The Cocoon nebula, 


            Brice Blanc