The Orion Nebula is an HII region that
is embedded in a giant molecular cloud complex. It can easily be seen with a small
telescope, embedded in the belt of Orion's sword. The four bright stars at
its center are called the Trapezium. The stars in the Orion Nebular Cluster
are nearby, at distances of 350 to 500 pc.
Here are some links to images of Orion:
