Wunder des Weltalls

IC 1396A - Elephant Trunk Nebula in Cepheus

Fotograf: Anthony Ayiomamitis

Reduction, two-star manual registration/alignment, average-combine, colour balance for QE with adjustment for atmospheric extinction, Sigmoid non-linear stretch (3x), 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-IC-1396A.htm
Komplettes Bild anzeigen

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