The Omega Nebula (also called the Swan Nebula) in Sagittarius. To the north of M8 is the smaller M17. In a telescope it looks like an Omega, and this effect is more marked when a filter is used. A CCD image brings out a lot of detail surrounding the central object, but in a dark sky and using a filter most of this can be seen visually. This LRGB image is a 30:20:20:20 minute composite using the C14 and ST10 camera.