There have been some massive filaments (gas suspended my megnetism - they appear dark as they are cooler than the surrounding areas) on the Sun over the past few days and I was itching to get some images.
Usual set up - Lunt60/Ha/single stacked, 2.5 Powermate, DMK31 and Registaxed.
Exp 1/19, Gamma 47, about 1000 images with best 45 used.