NGC4631 Whale Galaxy HLRGB image, ASI6200MM PRO, 6.1h integration time (794 of 1303 subs used), L 15s, RGB 30s, Ha 60s, good to medium seeing (1.4"-1.6"), two nights, 60% moon Planewave CDK17 2939mm f/6.8 · LRGB · ZWO ASI6200MM Pro (mono cooled) · 6h 37min (raw total) · 794 subs · Freyung Private Observatory, Germany · 12h 42m 08.0s / +32° 32' 29.4" · 2026-03-10
