Amateur Astrophotographie Landos France

Eastern Veil Nebula SHO

EasternVeilNebula_match-pick-web

Optics/mount : 12″ACF 2.7m AP-Reduzer Alt-5
Camera/filters: Atik 11002 AstrodonHa/OIII/SII
Exposure:15×600 Ha, 10×600 OIII/SII all2bin
04 September 2014

The Veil Nebula itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape covering nearly 3 degrees on the sky in the constellation Cygnus, this portion of the eastern Veil spans only 1/2 degree, about the apparent size of the Moon. That translates to 12 light-years at the Veil’s reassuring estimated distance of 1,400 light-years from planet Earth. In the composite of image data recorded through narrow band filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms in blue-green hues.

NGC 6995 est la partie la plus méridionale de la nébuleuse Cirrus dans la constellation du Cygne. NGC 6995 a une luminosité de 7,00 mag et un diamètre de 12 minutes d’arc.

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