M13 Hercules Star Cluster LRGB image, ASI6200MM PRO, 1.8h integration time, 430 Subs used (selected 20%), 15s Luma and 30s RGB, short exposures), crop to 70%, exeptional good seeing (0.9" - 1.0"), one clear night, waning crescent moon 4%. Planewave CDK17 2939mm f/6.8 · LRGB · ZWO ASI6200MM Pro (mono cooled) · 3h 06min · 372 subs · Freyung Private Observatory, Germany · 16h 41m 41.6s / +36° 27' 40.7" · 2025-05-16
