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This is a nice evolution of a prominence and a flare in CaII-K. I recorded sequences every 20 seconds (duration 10 seconds), this clip is showing around 30 minutes that have been the most interesting.
I also include a picture at 8:06 UTC where other uploaders showed the ?-shaped flare in H-alpha.
Taken with Lacerta 290M camera on a TS 130/910 refractor (stopped down to 80 mm) and Lunt CaIIK-filter at Volkssternwarte Darmstadt observatory.
Photographer's website:
No URL provided.
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