230721 V2011 Cygni Nebula - CDK17 reduced HGBHGB (Halpha geen blue) image, 60-10-10s, ASI6200MM PRO, 6.6h integration time (50% of 13.2h, four partly clear nights), very good to medium seeing (1.1"-1.5")21.07.2023, 18:22:24