Galaxy Zoo Talk

Irregular arm - Possible interaction?

  • thanby by thanby

    This seems like a pretty straight-forward 4-armed spiral, but the farthest arm appears to dim in the middle and get brighter towards the end. There's another object in the visual vicinity but I can't tell if it's a smaller cluster that's possibly interacting with the galaxy, or if that's a coincidence. Either way the arm does seem a bit irregular to me. Does anyone else agree?