Sunspot AR2473 sudden eruption (H alpha) !
Taken by Sylvain Weiller on December 28, 2015 @
SAINT-RÉMY-LES-CHEVREUSE IDF, FRANCE
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Details:
Activity was low .... but suddenly a M1 flare !
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Standard PST on LXD75, ASI 120MM USB3 camera. Firecapture in autorunmode. 30s acquisitions processed with AS!2, Astro Image 3.0 and Irfanview.
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