Thanks, Jim. That's the reason I targeted the Helix Galaxy, even though it was only 1.5' x 0.5' in size.
"It is an object of great scientific interest, because polar-ring galaxies are very rare galaxies. They are thought to form when two galaxies gravitationally interact with each other. "The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring. Still, observed properties of NGC 2685 suggest that the rotating ring structure is remarkably old and stable."
The only stranger thing I've seen is Hoag' Object (PGC54559), a Ring Galaxy. I'll be processing my data on that one soon. It's so small I don't think I'll get much resolution of it. I believe it's the only ring galaxy in the visible sky...except for the one that can be seen through the ring of Hoag's Object!
Edited by Dynan, 15 May 2021 - 08:15 PM.