Looks like something but not in proper sequence.
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by tactoe
Three out of four frames show something. Should a real asteroid move in a straight line from frame 1 to 4?
What is the time span of the frame set?Posted
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by AstroTinker
This is a flat field defect #ffd , the lower 3 of an inverted-T pattern. Basically a dust spot or something on the CCD imager, or a hot-pixil. Either type of defect moves with the telescope as it repositions between shots, where the scope is not exactly re-aligned with the background star field. Note the motion right-left relative to the right border haze, another type of ffd.
Simply put, a scope defect, not something moving out in space.Posted