The recording was made within 4 days.
Night 1 on July 16, 2022 with 41 images dual band a 300 sec
Night 2 on July 20th, 2022 with 10 images dual band a 300 sec
Night 3 on August 23rd, 2022 with 53 images dual band a 300 sec
Night 4 on September 4th, 2022 with 74 images RGB a 60 sec
The reviews were moderately good, with the 3rd night being the best. Unfortunately, the influence of Starlink is increasing.
It was necessary to sort out some 10 or so images by hand because there were very clear satellite traces.
The remaining traces could be worked out very well by stacking.
The data was processed with APP and PS.The steps were roughly explained:
APP the dual data separated and stacked.Background gradient removed.Made an RGBHOO out of it without the RGB data.
The RGB data is stacked normally.Improved background and calibrated stars.
The two results overlaid in Photoshop.
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers.
The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago.
At the time of explosion, the supernova would have appeared brighter than Venus in the sky, and visible in daytime.
The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon).While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements. (The distance estimates affect also the estimates of size and age.)source:
https://en.wikipedia.org/wiki/Veil_Nebula
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