Why does this ringed galaxy have spiral arms coming out of its ring.

• by Betelguse

  Posted November 22, 2016 8:29 PM

• by ElisabethB moderator

  Because it is a two-armed spiral galaxy with an inner ring ! 😄

  Posted November 22, 2016 8:55 PM

• by Betelguse

  The holy grail of astronomy?

  Posted November 22, 2016 8:56 PM

• by ElisabethB moderator

  ????
  It is a (very beautiful) example of a two armed spiral. Why would you say this is the holy grail of astronomy ?

  Posted November 22, 2016 9:03 PM

• by Betelguse

  Because you rarely find a ringed galaxy,specially one with spiral arms at the same time.I wonder how it formed.

  Posted November 22, 2016 9:08 PM

• by ElisabethB moderator

  As far as I know this is not a ringed galaxy. A ringed galaxy is a spiral galaxy where the two spiral arms fold back to appear as a ring.

  And there are lots of galaxies looking like this and there are also lots of galaxies with inner rings, such as this one !

  Posted November 22, 2016 9:24 PM

• by Betelguse

  ❤️ thank you for letting me know.Also a ringed galaxy is when there is a central cluster of stars with a ring of dust orbitin really far away.

  Posted November 23, 2016 5:08 PM