QSI 583ws Camera and Borg 101ED telescope at f/4.1. Astrodon 5nm Ha filter.
AP 900 mount.
8 X 25 min subs binned 1X1. Sensor temp @ -20 deg. Frames acquired with MaxIm DL 5, calibrated and combined in CCD Stack2. Final processing in ImagesPlus 4.0.
Stardust Ranch, Okeechobee FL. Feb 2012