Nebulae

A nebula is a very large cloud of dust and gases floating in the space between stars. Nebulae are composed mostly of hydrogen, helium and various ionized gases.

• M1 Crab Nebula
• M16 Eagle Nebula
• M42 Orion Nebula
• M57 Ring Nebula

NGC

• M2-9 Butterfly Nebula
• NGC 6543 Cat's Eye Nebula
• NGC 7293 Helix Nebula