Someone talk, what is this???
I'm a newbie, and for me this is so strange.
(Sorry for bad portuguese)
Yea, there is definitely missing a good "Go here and there" additional pointer's in the classifying page guide.
On the subject at hand, those are telescope related artifacts.
They come in black and white variations, and they can even change color in a single set.
In this case I'm not sure what's involved, other than some internal telescope reflection mishap.
Any general telescope related artifact is directly identifiable by the distinct relative virtual motion it makes.
(The upside-down T)
From frame 1 to frame-2: Up
From frame 1 to frame-3: Right.
From frame 1 to frame-4: Left.