Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  NGC 6997  ·  NGC 7000  ·  North America nebula  ·  The star 60Cyg  ·  The star ξCyg
NGC 7000 North America Nebula at 300mm, 



    
        

            StarGale
NGC 7000 North America Nebula at 300mm
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NGC 7000 North America Nebula at 300mm

Technical card

Imaging telescopes or lenses: Canon EF 70-300mm f/4-5.6 IS USM

Imaging cameras: Canon 60D

Mounts: Losmandy G11 Gemini II

Software: Deep Sky Stacker 3.3.2  ·  Arcsoft PhotoStudio 5.5


Dates:Sept. 11, 2013

Frames: 6x240" ISO1600 bin 3x3

Integration: 0.4 hours

Darks: ~27

Flats: ~25

Bias: ~30

Avg. Moon age: 6.10 days

Avg. Moon phase: 36.53%


Basic astrometry details

Astrometry.net job: 204122

RA center: 21h 1' 30"

DEC center: +44° 7' 51"

Pixel scale: 9.186 arcsec/pixel

Orientation: -179.393 degrees

Field radius: 2.511 degrees


Resolution: 620x941

Locations: Suburban backyard N/O Seattle, Lynnwood, WA, United States

Description

In this version of the North America Nebula I attempted to reduce noise and give more accurate colors to the nebulosity and the stars. To do this I stretched the image less agressively and only reduced the color gradient, not the brightness gradient. I also increased the red ratio slightly to bring out the nebulosity and increased the green ratio slightly to reduce the blue color cast to the background. While the nebula is redder it is softer having less contrast with the dark areas. Like all of my images this one could benefit from much greater integration time.

The imaging was performed unguided with an unmodified camera. The image was reduced prior to processing using Startools software "binning" set to 33.33 percent (3x3). Binning after processing seems to produce the same result but takes longer.

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NGC 7000 North America Nebula at 300mm, 



    
        

            StarGale