[back] NGC 6357 in Scorpius [NED]

 (c) 2004 All astro photo images are copyrighted. They may not be used or reproduced without explicit written permission from the authors.





About this Image / Über dieses Bild

Image Type, Orientation: (L+Ha)-RGB Composite, North is at 4:00h
Exposure time: L: 16x60sec. 1x1 bin,  Ha: 8x120sec. 1x1 bin, R,G,B: 8x120 sec.  1x1 bin
Exposure date: June 13th, 2004
Location: Capella Observatory at Amani Lodge, Kupferberg near Windhoek, Namibia
Filter: FR03 + Astronomik
Typ II LRGB filters
Instrument: Ganymed 60cm-Hypergraph in secondary focus, f=4800 mm
Seeing (FWHM): 1.8"
Photographer: Josef Pöpsel, Beate Behle

In order to enhance the very low color shade of this nebula, which emits light mainly in Ha, the saturation was tuned up strongly.

Image processed with CCD-Sharp and digital development (DDP).




Um die sehr schwachen Farbnuancen dieses vorwiegend im Ha-Licht scheinenden Nebels hervorzuheben, wurde die Farbsättigung stark angehoben.

Das Bild wurde mit Hilfe von CCD-Sharp und "digital development" (DDP) bearbeitet.

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