Eta Carinae
The Eta Carinae system is inside the Homunculus nebula, itself part of the much larger Carina nebula. Together they have a combined luminosity of over five million times the Sun's. It is not visible north of latitude 30°N and is seen moving round the pole south of latitude 30°S. Due to its mass and the stage of its life, it is expected to explode as a supernova in the future.