The Little Dumbbell Nebula, or NGC 650/651, is located 3,400 light-years away in the northern circumpolar constellation Perseus. The Orion Nebula is a perfect example of an emission nebula.
M16 is the collective name for two distinct objects that are listed separately in astronomical catalogues: an emission nebula, referred to as IC 4703, and an open star cluster, designated as NGC 6611.
A small telescope will already reveal the characteristic donut-like structure of glowing gas that gave the Ring Nebula its name. The Ring Nebula is a planetary nebula - objects that are the colourful ...