The Carina Nebula is a vast region of bright and dark nebulosity located in the southern constellation Carina. It is also known as the Eta Carinae Nebula, the Grand Nebula, and the Great Carina Nebula. With an apparent magnitude of 1.0 and an apparent size of 120 arcminutes, the nebula is easily visible to the unaided eye on a clear night. It has the designation NGC 3372 in the New General Catalogue and is listed as Caldwell 92 in the Caldwell catalogue.
The Carina Nebula lies 8,500 light-years away. It is one of the largest diffuse nebulae known. It spans about 460 light-years in diameter. The nebula is more than six times more distant than the Orion Nebula (Messier 42) and nevertheless appears both brighter and larger than the more famous M42. The Orion Nebula is better known because it is visible from virtually any place on Earth, while the Carina Nebula appears in the far southern sky and is invisible to most northern observers. M42 spans 24 light-years and lies 1,344 light-years away.
Text Source : https://www.constellation-guide.com/carina-nebula/
