RGB Image : Abell 12 (PK 198-06.1; PN G198.6-06.3)
Exposure and processing: Dither guiding, dark & flat calibration,
Poisson sigma reject, RGB combine,
gradient removal, levels, curves.
Click on image for full size version (691KB)
Illustration of blooming artifacts
Single calibated Green channel exposure (2min). No further processing
Click on image for full size version (1745KB)
Copyright images and processing Gert Gottschalk.
Copyright Bilder und Verarbeitung Gert Gottschalk.
Email : drgert1@yahoo.com
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