About 4,000 years ago an elderly, bloated giant red star, gave its last gasp and shed off its outer skin exposing its still pulsating heart. What’s left now is an extremely hot white dwarf star that’s exciting the bubble of ionized gas that still surrounds it.
This was the first planetary nebula ever discovered by Charles Messier in 1764 while he was comet hunting in the night sky. Please see more details on (M27) on the SEDS website at:
Image taken at my Stardust Observatory at Leyburn on the 1st September 2019, with a Meade 80mm refractor and a Canon 70D camera, which was tracking on the larger 10inch Schmidt-Cassegrain telescope. There were 15x3 minute images with 10x3 minute darks stacked in DSS and processed in CS4, ISO 2000 and image is cropped.