4K NGC 7293 Helix Nebula in Space HD Wallpaper

The Helix Nebula, also known as NGC 7293, is a large, faint nebula located in the constellation Aquarius. It is a planetary nebula, which is the final stage in the life of a low-mass star. The nebula is composed of gas and dust that has been ejected from the star's outer layers. The central star is a white dwarf, which is the remnant of the star's core. The nebula is illuminated by the ultraviolet radiation from the white dwarf, which causes the gas to glow.