Tuesday, September 28, 2021
Veil nebula unveiled II
I haven't start the imaging season yet, up here 65N. Nights are still short and I haven't got my imaging rig ready after the mandatory six months Summer break.
I have reprocessed some older shots with new data, this time the Veil nebula supernova remnant in Cygnus. Original image was shot with the Canon EF 200 mm f1.8 camera optics full open, QHY9 astro camera and Baader narrowband filters at 2013.
New data is shot with Tokina 300mm f2.8 camera optics and Celestron Edge HD 11" telescope, Apogee Alta U16 astro camera with Astrodon narrowband filters.
Total exposure time is now about 45 hours. I published yesterday a Pickering's Triangle photo taken with Celestron Edge HD 11"-. It's part of this new image among other.
Veil nebula Unveiled
Click for a large image, 1250 x 1700 pixels
Image is in visual palette from emission of an ionized elements, hydrogen (H-alpha), sulfur (S-II) and oxygen (O-III). Red=Hydrogen + 33% sulfur, Green=oxygen and Blue=oxygen + 33% hydrogen to compensate otherwise missing H-beta emission.
A Closeup
Click for a large image
https://astroanarchy.blogspot.com/2013/12/veil-nebula-unveiled.html
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