NGC 2440 : Cacoon a new White Dwarf - HD62166, the white dwarf star in the nebula's center, is one of the hottest white dwarf stars known. This nebula is located about 4,000 light-years away in the constellation Puppis
White Dwarf Star Spirals. About 1,600 light-years away, two dense white dwarfs in the J0806 binary star system orbit each other once every 321 seconds. When they reach the end of their long evolutions, smaller stars typically become white dwarfs.
Death Star: Eta Carinae, one of the closest stars to Earth is huge and unstable and will likely explode in a supernova in the relatively 'near future' (On an astronomical timeline this could be a million years from now). via NASA