Tidal debris / tidal ring? or?
-
by
nyjtm
Trail to lower right forms a near complete circle below the galaxy when you see it in a wider view. Can someone explain this?
Posted
-
by
Budgieye
moderator
The big dark circle is an artifact. Probably the software detected a cosmic ray hit, made a loop around it and cut it out, then pasted back an average background.
Posted