Keyhole Nebula

NGC 3324: The Keyhole Nebula
NGC 3372: Eta Carina

Object type: Emission (H II region) nebula

This image shows Eta Carina nebula, which is actually two nebulae around the enormous variable, Eta Carina. Shown are both the Homunculus Nebula (NGC 3372) and the Keyhole Nebula (NGC 3324). Together, they make up one of the brightest deep-sky objects in the sky. In fact, it is the brightest diffuse nebula, even brighter than the Great Nebula in Orion (M42)