Sh2-171 The Cosmic Question Mark Nebula RGGB (color) image, ASI6200MC PRO, 9.9h integration time (594 selected images from 654), good to mediocre seeing (1.2'-1.8'), high humidity. Almost full moon. Three nights. Celestron RASA36 790mm f/2.2 · RGGB · ZWO ASI6200MC Pro (color cooled) · 9h 54min · 594 subs · Freyung Private Observatory, Germany · 00h 01m 08.6s / +67° 25' 17.0" · 2024-11-25
