Galaxy Zoo Talk
Note the shift in the galaxy arm above the image, appears to be interacting with something, or a rotational spinoff.
Looks like a good tidal force happening on that one.
Cluster being disturbed by a greater gravity force? Merge for sure, but looks like more interaction in the merge w/ the dust lane.
Appears to be a merger between that star and the galaxy; or perhaps a nebula and galaxy interaction (i think more likely that one)
Appears as though the large blue mainline star is 'sucking' or pulling part of the galaxy arm towards it. Possibly black hole ejection?