Messier 42, The Orion Nebula is one of the most iconic deep sky objects and one of the brightest nebula, it can be seen as a fuzzy star in the sword of Orion figure. Illuminated by a central cluster of stars, the four primary ones are referred to as the Trapezium, for their shape of a trapezoid. As a stellar nursery it is in the process of forming new stars as pockets of the nebula collapse under gravity.