M102 The Spindle Galaxy LRGB image, ASI6200MM PRO, 1.3h integration time, 190 Subs used (from 587, strict selection), 15s Luma and 30s RGB, short exposures, crop to >50%, good seeing (1.1" - 1.4"), one clear night, waxing gibbous close to, full moon. Planewave CDK17 1940mm f/4.5 (0.66× Red.) · LRGB · ZWO ASI6200MM Pro (mono cooled) · 1h 18min · 156 subs · Freyung Private Observatory, Germany · 15h 06m 29.6s / +55° 45' 47.9" · 2025-06-10