"Veil" 52.5 hours.

Friends, I am glad to present to you the September Veil nebula in the constellation Cygnus! 7 clear nights were not wasted. We photographed it together with Mikhail Mikhailov using two identical setups, so a collaboration on the accumulated signal suggested itself. In total, we managed to collect 52.5 hours, Misha gathered 19.5 hours and my setup collected 33 hours. Most likely I will return to this work again to rethink the processing, since not everything pleases me, but for now this is it. The nebula itself is the remnant of a supernova explosion of a star about 20 solar masses, at a distance of about 2400 light-years. This happened about 5-8 thousand years ago and now the shock waves from the explosion (or as the media like to write, the "bang") are expanding in space.
Technical part: two Askar SQA55 telescopes, two ZWO ASI2600MC cameras, two Antlia APT DualBand 3nm filters. Light pollution zone is blue (tending toward gray) SQM21.79, 150 km from Novosibirsk.