Behold: M27 – the Dumbell Nebula – possibly what will eventually happen to our own sun. To wit:
…the type of nebula our Sun will produce when nuclear fusion stops in its core.,M27 is one of the brightest planetary nebulae on the sky, and can be seen toward the constellation of the Fox (Vulpecula) with binoculars. It takes light about 1000 years to reach us from M27, featured here in colors emitted by hydrogen and oxygen. Understanding the physics and significance of M27 was well beyond 18th century science. Even today, many things remain mysterious about bipolar planetary nebula like M27, including the physical mechanism that expels a low-mass star’s gaseous outer-envelope, leaving an X-ray hot white dwarf.
(Image: Steve Mazlin)