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Wednesday, December 14, 2016

Filaments of the Veil Nebula

At this Autumn season I have shot several well known targets in constellation Cygnus. 
My purpose was show them little differently by selecting some less imaged details to show.
This new image is a four panel mosaic showing the complex, filament like, structures in Veil Nebula supernova remnant. Original full resolution photo is about 11.000 x 4000 pixels! Total exposure time is around 35 hours. The final photo looks like a giant alien space plant...

Filaments of Veil
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Image is in mapped colours, from the emission of ionized elements, R=Sulphur, G=Hydrogen and B=Oxygen. Image spans about three degrees vertically.

A closeup
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A horizontal version
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Orientation in Veil Nebula
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Area of interest is marked as a white rectangle 
This wide field photo of the Veil Nebula was shot with Canon EF 200 mm f1.8 camera lens, QHY9 astrocam and Baader narrowband filters.

Technical details

Processing work flow

Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.

Imaging optics
Celestron Edge HD 1100 @ f10 with 0,7 focal reducer for Edge HD 1100 telescope

10-micron 1000

Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II

Exposure times for all three panels
H-alpha, 30 x 1200 s = 10 h
S-II,  24 x 1200 s binned 2x2 = 8 h
O-III,  51 x 1200 s binned 2x2 = 17 h
Total 35 h

Images used for this mosaic

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