EDIT I reworked all the data and produced this version, i think it is superior to the last
The Flaming Star Nebula or IC 405
This is a beautiful mix of reflection nebula (blue) and emission nebula (red). The blue is caused by the scattering of light in the gas cloud and works under the same principals as our own sky. The red however is ionized gas. It is called an emission nebula because the ionized gas glows slightly producing its own light.