The Orion Nebula
is a diffuse nebula situated below the belt of
Orion. It's one of the brightest nebulae and
is visible to the naked eye. It's about 1300 light years away and
about 24 light years across. It's one of the most photographed
objects in the night sky.
Stars and planets are forming from collapsed clouds of gas and
dust. M42 is just part of a larger cloud called the
Orion Molecular Cloud Complex which includes Barnard's Loop, the
Horsehead Nebula, M43, M78 and the Flame Nebula.
At the center of the Nebula is a cluster of very young energetic stars
called the Trapezium.
Telescopically, M42 is one of the finest sights in the heavens.