M20, The Triffid Nebula
Is described here in Wikipedia.
It is a combination of emission (red) and reflection (blue) nebula associated with a young star cluster and dark nebulas forming the three pronged appearance. It is in the constellation of Sagittarius.
I imaged it with the 16" Meade and SBIG ST-2000XCM one shot colour CCD camera. 9 frames of 5 minutes exposure were captured using CCDOPS software. This was also used to calibrate the light frames and to stack them into a final image which I then further processed in Photoshop CS3.