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Contains:  IC 4996, Crescent nebula, NGC 6888, The star 34Cyg
Getting plate-solving status, please wait...
Crescent nebula NGC 6888. First narrowband project, 





    
        

            Bradley Hargrave
Crescent nebula NGC 6888. First narrowband project

Crescent nebula NGC 6888. First narrowband project

Technical card

Resolution: 4560x3417

Dates:May 29, 2019

Frames:
Baader H-Alpha 1.25 7nm: 25x300" (gain: 139.00) -20C
Baader OIII 1.25" 8.5nm: 15x300" (gain: 139.00) -20C
Baader SII 1,25" 8.5nm: 9x300" (gain: 139.00) -20C

Integration: 4.1 hours

Darks: ~20

Avg. Moon age: 24.68 days

Avg. Moon phase: 24.33%

Astrometry.net job: 2723816

RA center: 303.115 degrees

DEC center: 38.408 degrees

Pixel scale: 1.978 arcsec/pixel

Orientation: 0.662 degrees

Field radius: 1.566 degrees

Data source: Backyard

Description

This is my first narrowband image. It is tougher to balance the color to be just right, but i'm enjoying the task. The soap bubble near bottom left is visible. :D
I welcome all comments and criticism.

Thanks for viewing and clear skies!

Comments

Author

Brawrey
Bradley Hargrave
License: None (All rights reserved)
680
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Revisions

  • Crescent nebula NGC 6888. First narrowband project, 





    
        

            Bradley Hargrave
    Original
  • Crescent nebula NGC 6888. First narrowband project, 





    
        

            Bradley Hargrave
    B
  • Final
    Crescent nebula NGC 6888. First narrowband project, 





    
        

            Bradley Hargrave
    C

B

My first bi color mock up. HaOIII, synthetic green, no calibration frames.

C

added SII data. darks calibration, reprocess. I liked this color and detail.

Sky plot

Sky plot

Histogram

Crescent nebula NGC 6888. First narrowband project, 





    
        

            Bradley Hargrave