The NGC7000 nebula

Last night I put a 135 mm lens on the CCD and shot NGC7000, very close to the star Deneb.
It was very windy so I couldn't take all the frames I would have liked, 10 of Ha of 300 seconds, and only 3 of each filter of OIII and SII.
I captured it with Maxim DL6.
NGC 7000 is a nebula located in the Cygnus Constellation.
According to what I read in Wikipedia, Neither the distance separating us from NGC 7000, nor the star responsible for the hydrogen ionization that produces the light emission is precisely known. If, as some sources point out, Deneb is the star that illuminates the nebula, the distance from NGC 7000 to Earth would be of the order of 1800 light-years.
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