HYDROGEN NEBULOSITIES AT CYGNUS H-ALPHA ONLY

Thanks, I'll try to find them and stack them separately during the week!

https://yadi.sk/d/rBtAignqb5SSsg Here is the sum of six 2-minute exposures in Ashbeta (12 nm).

Thanks. I'll take a look. Please don't delete it for a couple of days.

Please. Here there is oxygen, but in my opinion not all of it, only a part. https://yadi.sk/d/0Fp1OhGPYKZksQ
But overall, I think it will be clear what's what. The images were taken with an open setup and without a microfocuser, so the stars are poor, and there were also initial problems with calibration. Now I could improve the result with the same equipment. I abandoned shooting in H-beta because it almost completely duplicates Ha and also captures a bit of oxygen. The contribution of blue from the H-beta line can be created synthetically by mixing Ha into the blue channel when assembling the pseudo-color image.