NGC 5189 "The Spiral Planetary Nebula"
Telescope: 0.32 in NSW, Au
Camera Filters: Oxygen, Hydrogen, Sulfur
Total exposure: 6 hours
Image width: 1/3 degree
NGC 5189 is a very small and difficult to image Planetary Nebula at a distance of about 300 light years from earth. The central star is actually a double star: a white dwarf and a Wolf-Rayet star. It is thought that this orbiting pair is a major cause of the unusual S-shaped nebula.