Messier 78 is a reflection nebula in the constellation of Orion, located 1.350 light-years away. It was discovered by Pierre Mechain in 1780 and included by Charles Messier in his catal...
Separated from the Orion Nebula (M42) by only a dark lane of dust, M43 was recognized as a distinct nebula by the French astronomer Jean-Jacques d'Ortous de Mairan in 1731. A massive st...