Caldwell2 Caldwell 2 Bow-Tie Nebula HGO (Ha-Green-OIII) image, ASI6200MM PRO, 1.6h integration time, heavily cropped (approx. 15%), very small target, exceptionally good seeing (1.0"), new moon. Planewave CDK17 1940mm f/4.5 (0.66× Red.) · HGO · ZWO ASI6200MM Pro (mono cooled) · 1h 36min · 96 subs · Freyung Private Observatory, Germany · 00h 13m 36.4s / +72° 31' 30.0" · 2024-11-01