Image : IC 434 (H-Alpha) Deep Exposure 9hr 15min.

Processed : Dark, flat field calibration, curves, local high pass, noise removal.
(click on image for full size 388kB)


Older version with non-optimal flats (Note the gradient artifacts in the corners)
(click on image for full size 343kB)


Imaging equipment used: AP130 F6.3 APO refractor, ST10XME

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

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