What are the Bubble in the Center?

• by Kirsten-Karin

  ?

  Posted June 1, 2014 9:57 PM

• by ElisabethB moderator

  The brownish bubble could be a #planetarynebula

  Posted June 2, 2014 10:49 AM

• by Kirsten-Karin

  Thx 😃

  Posted June 2, 2014 1:06 PM