Number of Arms?

• by cdoyle

  Good spiral. 3 Arms? More?

  Posted September 14, 2012 9:29 PM

• by ElisabethB moderator

  really nice one.
  maybe 4 ?

  Posted September 14, 2012 9:30 PM

• by PDXDave

  To me, it looks like 2 arms which are biforcated midway out.

  Are arms counted from their separation from the disc, or from the outsisde in?

  After classifying over 1,000 galaxies, you'd think I would have fewer questions.... but no...I have more! 😕

  Posted September 20, 2012 3:35 AM

• by Lovethetropics

  The best way to count the arms is inverting the galaxy

  Posted September 20, 2012 4:04 AM