The animation represent a close up portion of the sun of 26 August with the evolution of a quiescent prominence during an hour of observation. Images taken with a 100 ed refractor using a Daystar h-alpha filter at a focal of 2400mm.
Finally I could follow a big prominence system. The arc moviment wasn't very slow but the seeing was bad so I preferred to use long intervals of 60 seconds with 50 seconds of capture to have enough data to choose good frames.
Movie produced by Paolo Porcellana
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