Hey gang, just stacked some images from this saturday at watts bridge. I decided to try some more vague and not that well known target (for me anyways) since my guiding was by far my personal best. These were 10 minute exposures but when I stacked them, on one side, it sort of has a 3d effect where one colour seems to have shifted slightly, it actually hurts my eyes if i look at it for too long. Anyone know what could cause this effect? If so how do I get rid of these literal eyesores. The rest of the image seems fine, its just on the right side that seems to be effected (gradually getting worse as it approaches the edge. I've attached the full image as well as a 100% crop of one of affected side.
full res image here