Thor's Helmet
Telescope: Vixen ED130SS
Guide Scope: Mini Borg 50 with QHY5L-IIC
Lens: William Optics FLAT4 0.8x reducer/flatterer [5]
Mount: AP 900 GTO using autoguider
Camera: ZWO ASI178MC-COOL Color
Exposure: 1h 26m (8 at 4min, 27 at 2min)
Processing: ImagesPlus 6.5, 35 graded images
Location: MHO
Date: 14-Feb-2020