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Contains:  IC 1275, NGC 6559, IC 1274, IC 4685, NGC 6544, NGC 6546, NGC 6530, M 21, NGC 6531, M 8, Lagoon nebula, Hourglass nebula, NGC 6523, NGC 6526, Trifid nebula, M 20, NGC 6514, The star 11Sgr, The star 9Sgr, The star 7Sgr, The star 4Sgr
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M8 & M20 (from full frame to cropped), 





    
        

            Jan Curtis
M8 & M20 (from full frame to cropped)

M8 & M20 (from full frame to cropped)

Technical card

Resolution: 1908x1908

Dates:May 5, 2014

Frames: 87x60" ISO1000

Integration: 1.4 hours

Avg. Moon age: 5.92 days

Avg. Moon phase: 34.72%

Bortle Dark-Sky Scale: 2.00

Temperature: 10.00

Astrometry.net job: 443953

RA center: 271.322 degrees

DEC center: -23.780 degrees

Orientation: 162.010 degrees

Field radius: 2.051 degrees

Description

Skies darkened and cleared under mild temperatures after moon set.

The original image is raw unprocessed. Processed improvements will follow.

Post-process used PI and PS. Note contrast, color, noise reduction, star reduction, sharpness in final versions.

Comments

Author

NightSky
Jan Curtis
License: Attribution-NonCommercial-ShareAlike Creative Commons
2041
Like

Revisions

  • M8 & M20 (from full frame to cropped), 





    
        

            Jan Curtis
    Original
  • M8 & M20 (from full frame to cropped), 





    
        

            Jan Curtis
    B
  • M8 & M20 (from full frame to cropped), 





    
        

            Jan Curtis
    C
  • Final
    M8 & M20 (from full frame to cropped), 





    
        

            Jan Curtis
    D

Sky plot

Sky plot

Histogram

M8 & M20 (from full frame to cropped), 





    
        

            Jan Curtis