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Contains:  Trifid nebula, M 20, NGC 6514
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M20 Trifid nebula, 





    
        

            cray2mpx
M20 Trifid nebula

M20 Trifid nebula

Technical card

Imaging telescope or lens:Celestron Edge HD 8

Imaging camera:Canon EOS 6D

Mount:Advanced VX

Guiding telescope or lens:Celestron Edge HD 8

Software:PixInsight

Accessories:Lacerta MGEN2Lacerta Ultra-Thin OAG

Resolution: 3804x3580

Dates:June 28, 2016

Frames: 25x300" ISO1600

Integration: 2.1 hours

Darks: ~50

Flats: ~50

Bias: ~100

Avg. Moon age: 22.94 days

Avg. Moon phase: 41.57%

Bortle Dark-Sky Scale: 1.00

Mean FWHM: 3.00

Temperature: 15.00

Astrometry.net job: 1941906

RA center: 18h 2' 23"

DEC center: -23° 0' 25"

Pixel scale: 0.653 arcsec/pixel

Orientation: 357.866 degrees

Field radius: 0.474

Locations: Ebenwaldhöhe, Kleinzell, Austria

Description

Revised M20 using the same data but much "lighter" processing in PI, resulting in smaller stars and better visibility of faint nebular structures and dust lanes. Sometimes a full blown LRGB workflow in PI does not yield the best result (at least not with my still very limited skills regarding PI). I have also used a new Masterflat since the old one was messing too much with the colors.

Comments

Author

cray2mpx
cray2mpx
License: None (All rights reserved)
4521
Like

Revisions

  • M20 Trifid nebula, 





    
        

            cray2mpx
    Original
  • M20 Trifid nebula, 





    
        

            cray2mpx
    B
  • M20 Trifid nebula, 





    
        

            cray2mpx
    C
  • Final
    M20 Trifid nebula, 





    
        

            cray2mpx
    D

D

Better processing in PI (calibration, FWHM-weighted Integration, stretching) resulting in more realistic colors and much reduced image noise.

Sky plot

Sky plot

Histogram

M20 Trifid nebula, 





    
        

            cray2mpx

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