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   Kelly Lepo (kellylepo@astrodon.social)'s status on Saturday, 02-Sep-2023 07:07:33 JST Kelly Lepo

   in reply to

   @morganism The hourglass-shaped rings (and the inner ring) are from material previously ejected from the star, that glow because they were ionized by ultraviolet and X-ray light from the supernova explosion.

   A proposed formation mechanism comes from binary interactions: https://hubblesite.org/contents/media/images/2007/10/2063-Image.html