(H-Alpha R)-GB Image :  NGC6888

Added more H-Alpha exposure & better focus blue channel.
Exposure and processing: Dither guiding, dark & flat calibration, Poisson sigma reject, H-Alpha (1.5x) & R mix,  HR-GB combine,
high pass filter, levels, curves.
(click on image for full size 1771KB)

Exposure and processing: Dither guiding, dark & flat calibration, Poisson sigma reject, H-Alpha (1.5x) & R mix,  HR-GB combine,
high pass filter, noise reduction, levels, curves.
(click on image for full size 1380KB)


(H-Alpha R)-GB Image :  NGC6888 (no noise reduction)

Exposure and processing: Dither guiding, dark & flat calibration, Poisson sigma reject, H-Alpha (1.5x) & R mix,  HR-GB combine,
high pass filter, levels, curves.
(click on image for full size 1646KB)


H-Alpha  Image :  NGC6888

Processed : Dark / flat calibration, sigma combine, high pass filter, curves, de-noise.
(click on image for full size 1016KB)









Copyright images and processing Gert Gottschalk.
Copyright Bilder und Verarbeitung Gert Gottschalk.

Email : drgert1@yahoo.com

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