H-alpha Sun – August 21, 2016
A lovely display today on the Sun, despite the poor seeing conditions. The H-alpha Quark filter is rapidly becoming my “most precious” piece of equipment and perhaps my most used one also…
I still have a lot to process from today’s results, but until I finish those results (around 80 Gb of data acquired from which only about 10% are usable I think), I’m posting one colored shot depicting the great activity at the solar limb:
The shot is a stack of 700 frames from 4000 under 4-5/10 seeing conditions. The acquisition setup : TS 115mm F/7 APO Refractor, Quark H-alpha filter, Baader UV/IR cut filter, ASI 174MM camera.
The great suspended plasma cloud is perhaps better distinguished in the following reprocessing:
UPDATE (August 22, 2016):
Newly processed images:
And another part of the solar limb: