This is the first image I actually processed with a special stacking software - DeepSkyStacker. It's a great and easy to use program, but I still have to discover all it's functionalities.
This image is the result of stacking several pictures I took with my Nikon D90 camera and a telephoto lens. Because I didn't know at the time I would need dark and flat frames, I didn't take any. So this is the result of stacking only light frames (the images).
Now I have to discover how to keep the color in the final picture ;)