Re: APOD: MyCn 18: The Engraved Hourglass... (2019 Sep 29)
Posted: Tue Oct 01, 2019 10:26 pm
geckzilla wrote: ↑Mon Sep 30, 2019 8:38 pmThose two nebulas look similar when you crop and rotate them to match, but MyCn 18 likely at a much younger stage. NGC 3132 is probably older and in a less organized stage.AVAO wrote: ↑Sun Sep 29, 2019 10:47 pm Below I try to compare a close-up from the core with the ring nebula. I think these type of planetary nebula are missing the hourglass ejection surfaces, as they have already dissolved. Therefore you can only see the central ring. The typical eye-like formation in the case of MyCn 18 results from the specific angle of view.
Jack from the AVAO team
Thanks, Jack and Geck! What an interesting comparison!
Ann