Fachbereich Astronomie - Sterne und Weltraum

Astronomie

Leserbilder - Wunder des Weltalls

NGC 6946 - Face-on Spiral in Cepheus/Cygnus

Fotograf: Anthony Ayiomamitis

Reduction, two-star manual registration/alignment, average-combine, colour balance for QE with adjustment for atmospheric extinction, DDP, background normalization, RGB combine, levels/curves, saturation, luminance layering, slight unsharp masking, despeckle, 16- to 8-bit conversion

Further details etc at http://www.perseus.gr/Astro-DSO-NGC-6946.htm
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