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:

13 48utCOLAug21.jpg

13 48utBWAug21.jpg

And another part of the solar limb:



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