I was really able to push the focal length on saturday up to 2000mm and zoom in on monster active region AR11731. This is currently the largest active region on the suns disk, and has a beta-gamma magnetic field that harbours energy for M-class solar flares. Currently, these would unlikely be Earth directed, but in the days ahead as this active region becomes more geo-effective the chance for auroral activity could increase. Taken with the 100mm frac at 2000mm fl with homebrew CaK filter and Imaging Source DMK31 camera.
