Details and other info, klick the link: <a href="http://astroanarchy.blogspot.com/2010/02/planetary-nebula-pk-164311-finalized.htmlNebula">http://astroanarchy.blogspot.com/2010/02/planetary-nebula-pk-164311-finalized.htmlNebula</a> in HST-palette, Red=S-II, Green=H-a and Blue=O-III