NGC 6888 - Crescent Nebula (Erik Bachmann)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · NGC 6888

NGC 6888 - Crescent Nebula, Erik Bachmann

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NGC 6888 - Crescent Nebula

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NGC 6888 - Crescent Nebula

HaOIIIRGB image of the Crescent Nebula (NGC 6888) and the surrounding nebulosity. I think I would need a bit more integration time to better bring out the oxygen-shell. Also the colors of the Crescent seem a bit weird.

First time I tried star reduction and sharpening as part of the processing. I think it looks alright.

Under an image of Jim Lindelien (www.astrobin.com/users/JimLindelien/) I read about correcting the mixing of the colors channels due to overlapping response of the different pixels in the Bayer matrix. I tried to do this in revision C. This in my opinion improved the colors of the image, the stars are much more colorful and there are more different colors in the nebulosity. However it messed up the star cores when using the same processing as before, therefore I tried out MaskedStrech which did a better job. Overall I am not sure which version I like more.

Original
Final
C

C

Description: Tried correcting the mixing of color channels due to overlapping response of the Bayer-pixels.

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Status	Basic success
Started	...
Astrometry.net job	3761722
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6888 - Crescent Nebula

NGC 6888 - Crescent Nebula

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NGC 6888 - Crescent Nebula

NGC 6888 - Crescent Nebula

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