H-alpha Sun – August 22, 2016

Again, some activity on the Sun’s limb with a few large proms.

Equipment: TS 115mm F/7 APO Refractor, Quark Chromosphere H-alpha filter, Baader UV/IR cut filter, ASI 174MM camera. 700 out of 4000 frames. Seeing 5/10.

The colored version:


And grayscale:


UPDATE (August 23, 2016):

One more image pair showing the same region presented above but at a different angle:



And a small active region as seen from above:


And a three-frame animation showing soft evolution of the solar surface on a period of only 15 minutes:



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