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Contains:  Helix nebula, NGC 7293
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NGC 7293 - The Helix Nebula (L-RGB), 



    
        

            Olivier Ravayrol
NGC 7293 - The Helix Nebula (L-RGB)
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NGC 7293 - The Helix Nebula (L-RGB)

Technical card


Dates:Sept. 21, 2015

Frames:Astronomik CCD CLS Canon EOS Clip: 27x240" ISO800

Integration: 1.8 hours

Darks: ~6

Flats: ~11

Bias: ~100

Avg. Moon age: 7.51 days

Avg. Moon phase: 51.40%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 3255926

RA center: 22h 29' 20"

DEC center: -20° 49' 19"

Pixel scale: 1.064 arcsec/pixel

Orientation: 286.974 degrees

Field radius: 0.761 degrees


Resolution: 4290x2856

Locations: Observatoire personnel, Tournefeuille, Haute-Garonne, France

Data source: Own remote observatory

Description

L-RGB (synthetic luminance)
1h48 exposure time at 800 iso (Tournefeuille, France)
Newton telescop 200/1000 – 450D EOS filter removed
CLS filter (due to light pollution conditions)
Preprocessing with IRIS (Christian Buil software)
Image processing with Photoshop
Final touch with Lightroom

Comments

Author

olivierr31
Olivier Ravayrol
License: None (All rights reserved)
1580
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Revisions

  • NGC 7293 - The Helix Nebula (L-RGB), 



    
        

            Olivier Ravayrol
    Original
  • Final
    NGC 7293 - The Helix Nebula (L-RGB), 



    
        

            Olivier Ravayrol
    C

C

Description: New pretreatment with SIRIL - New noise treatment with NoiseWare plugin

Sky plot

Sky plot

Histogram

NGC 7293 - The Helix Nebula (L-RGB), 



    
        

            Olivier Ravayrol