![M 42 region names after historical observations of Herschel, Struve and Rosse published at SEDS](http://trafyx.com/wp-content/uploads/2016/10/m42-nom.jpg)
M42, the Great Orion Nebula, is probably one of the most interesting objects in the sky. The amount of details visible in a telescope of even very small diameter is exciting. This small project is an attempt to help ourselves to stay more oriented when referring to the visible features of M42.