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On 2018 January 22 02:30–03:00 UT, a small filament erupted away from Active Region 12696 which was located near the west solar limb. This eruption is associated with a B9.6 flare. During the eruption, the northern part of the filament collides with a larger loop-like structure ahead of it. This collision [see the boxed region in the movie] leads to the up-and-down motion of the big loop, and might also be responsible for the apparent rotation of the filament. Beginning at ~02:48 UT, another Ω-shaped loop (indicated by an oval in the movie) bubbles up and is ejected away from the Sun.
Keywords: Flare, Filament