Holmberg IV
Mag + 13.4, Surface Brightness 15.1, 4.0 x 1.4 arc-min
starlight xpress SXV-H9,2.88 arc-sec/pixel Stellarvue Nighthawk at f/6 piggybacked on STV guided LX200 at 1,575 mm. Astronomik Type II clear and Lumicon DSF filters,
10 x 21 minutes, unbinned 1x1. Sigma combined in Ray Gralak's pre-beta 11.
full exif