NGC7023 Iris Nebula Widefield RGGB image, ASI6200MC PRO, 5.8h integration time, 15s subs (1387 of 2116 subs used), very good seeing 1.2"-1.3", four nights, moon waxing cresent (little), calm weather. Celestron RASA36 790mm f/2.2 · RGGB · ZWO ASI6200MC Pro (color cooled) · 5h 48min · 1392 subs · Freyung Private Observatory, Germany · 21h 01m 36.9s / +68° 09' 47.9" · 2025-06-20