What happened to the second arm?

• by Veridian_4

  It looks like the galaxy has been passed by another galaxy. Is the one left of it responsible for the look of the second arm?

  Posted September 25, 2012 10:30 PM

• by ElisabethB moderator

  Now there is a difficult question. The central object seems disturbed. and the little one to the left looks disturbed too !Okay : merger in progress for me ! 😄

  Posted September 25, 2012 10:45 PM