Just tinkering again
Reoriented it as I like it better this way - looks more like it is on fire. I also enhanced the nebulosity a little to show up the parallel radiating OIII streamers (most obvious in top right area of the main ring) and made the colour a little more vivid....
There have clearly been a few outbursts in the long history of this dying star in Aquarius, visible as shells of gas getting ever fainter as you go out from the main ring, best seen on the screen in a darkened room.
(770k)
http://www.pbase.com/strongmanmike20...63597/original
Shell structure possibly indicating at least 6 periods or outbursts in the life of this dying star
http://www.pbase.com/strongmanmike20...95818/original
Ah sigh...where's my new PL16803
Mike