Nebulae Helix Nebula – First Clear Weekend Since June Image September 11, 2021 admin Leave a comment The Helix Nebula – 14 x 180 sec, QHY183c at -15C, Gain 11, Offset 50, Optolong L-eNhance filter, Astro-Tech AT60ED at F/4.8, SharpCap 3.2 Live Stacking for acquisition. Taken from metro-area light polluted conditions.