The Rosette Nebula
The Rosette Nebula( NGC 2237) Is a massive Star forming region 5,200 light years away in the Constellation Monoceros.
At its centre is the open cluster NGC 2244.
The cluster illuminate's the surrounding gases with there extreme radiation.
One of these Stars HD46150 has a luminosity 450,000 times more than our Star, and is 60 times more massive.