Equipment and other photo info:
Picture taken during five nights, but only 17 light frames as I usually use this object for testing.
Celestron C10-N @ f/4.7, Canon 300d, 5x300sec @ ISO800, 3x360sec @ ISO800, 2x420sec @ ISO800, 7x480sec @ ISO800
Processing software: DeepSkyStacker, PixInsight LE, Photoshop CS3

Object info:
The Dumbbell Nebula (also known as Messier 27, M 27, or NGC 6853) is a planetary nebula (PN) in the constellation Vulpecula, at a distance of about 1360 light years.

This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars, and a great observing target in amateur telescopes.

More information about this object at: http://seds.org/messier/m/m27.html