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Contains:  North America nebula, NGC 7000, NGC 6997, Pelican nebula, IC 5070, IC 5068, The star ξCyg, The star 60Cyg, The star 57Cyg, The star 56Cyg, The star 55Cyg
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North America Nebula and Pelican Nebula in Narrowband, 





    
        

            Nico Carver
North America Nebula and Pelican Nebula in Narrowband

North America Nebula and Pelican Nebula in Narrowband

Technical card

Resolution: 3400x4400

Dates:May 26, 2017June 25, 2017

Frames:
Astrodon Tru-Balance 1.25" 3nm OIII: 19x180" (gain: 139.00) -20C bin 1x1
Astrodon Tru-Balance 1.25" 3nm S2: 17x180" (gain: 139.00) -20C bin 1x1
Astrodon Tru-Balance 1.25" 5nm Ha: 20x180" (gain: 139.00) -20C bin 1x1

Integration: 2.8 hours

Avg. Moon age: 1.20 days

Avg. Moon phase: 1.80%

Bortle Dark-Sky Scale: 3.67

Mean SQM: 20.65

Mean FWHM: 20.30

Astrometry.net job: 1638232

RA center: 314.175 degrees

DEC center: 44.223 degrees

Pixel scale: 3.585 arcsec/pixel

Orientation: 178.008 degrees

Field radius: 2.769 degrees

Data source: Traveller

Description

Used the SHO-AIP script in PixInsight.

Comments

Author

2ghouls
Nico Carver
License: None (All rights reserved)
5834
Like

Revisions

  • North America Nebula and Pelican Nebula in Narrowband, 





    
        

            Nico Carver
    Original
  • Final
    North America Nebula and Pelican Nebula in Narrowband, 





    
        

            Nico Carver
    B
  • North America Nebula and Pelican Nebula in Narrowband, 





    
        

            Nico Carver
    C
  • North America Nebula and Pelican Nebula in Narrowband, 





    
        

            Nico Carver
    D

B

"Print" version. Since prints always come out darker than how I see them on the screen due to the inherent differences between subtractive vs additive color, I always bring up the exposure a bit in Photoshop before printing. When I did that with this photo, it revealed some interesting structures (at least on screen, they were mostly lost in the print). The trade-off to raising the levels is that it made some of the color transitions more blocky (less smooth). It is probably revealing the limitation of only 3 hours of integration on this so far. Anyways, if you are reading this I would love to hear your thoughts on this photo and/or calibrating astrophotos for printing.

C

Using the Selective Color tool in Photoshop. A more traditional Gold and Blue look.

D

A more "natural" look I think by shifting towards red / magenta. Might be my favorite so far. What do you think?

Sky plot

Sky plot

Histogram

North America Nebula and Pelican Nebula in Narrowband, 





    
        

            Nico Carver