M51 Whirlpool Galaxy HLRGB image, ASI6200MM PRO, 16.8h exposition time (120-30-60-60-60s subs), 4.2h integration time (25% used), good to mediocre seeing (1.2"-1.8"), new moon to half moon (5 nights). Planewave CDK17 2939mm f/6.8 · HLRGB · ZWO ASI6200MM Pro (mono cooled) · 4h 12min · 504 subs · Freyung Private Observatory, Germany · 13h 29m 52.7s / +47° 11' 43.1" · 2023-05-24
