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Contains:  Crescent Nebula, Crescent nebula, NGC 6888, NGC6888, Sh2-105
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The Crescent Nebula - HORGB Image, 


            Eric Coles (coles44)
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The Crescent Nebula - HORGB Image

Technical card

Dates:May 4, 2020May 5, 2020May 6, 2020May 9, 2020May 10, 2020May 11, 2020

Astrodon 3nm OIII: 20x600" bin 1x1
Astrodon Blue Tru-Balance E-Series Gen 2: 14x600" bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 12x600" bin 1x1
Astrodon H-alpha 3 nm: 60x600" bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 14x600" bin 1x1

Integration: 20.0 hours

Avg. Moon age: 15.31 days

Avg. Moon phase: 90.30% job: 3506953

RA center: 20h 12' 16"

DEC center: +38° 21' 16"

Pixel scale: 1.104 arcsec/pixel

Orientation: -89.934 degrees

Field radius: 0.883 degrees

Resolution: 3600x4500

Locations: Sierra Remote Observatories, Shaver Lake, California, United States

Data source: Own remote observatory

Remote source: Sierra Remote Observatories


The RGB image of the Crescent Nebula is significantly enhanced with the addition of the H-alpha and Olll data.



Eric Coles (coles44)
License: Attribution-NonCommercial-NoDerivs Creative Commons

Sky plot

Sky plot


The Crescent Nebula - HORGB Image, 


            Eric Coles (coles44)