260107 NGC1491 Bright Nebula in Perseus - CDK17reduced HGBHGB (Ha-Green-Blue) image, ASI6200MM PRO, 60s-10s-10s Subs, 3.2h integration time, 501 of 714 subs used, very good to good seeing (1.2" - 1.5"), two nights, half moon.08.01.2026, 19:38:31