July 2012: the Dumbbell

Encouraged with the pay-off of my primitive flat-frames technique, I now target one of the brightest deep sky object: M27, the Dumbbell, a magnificent planetary nebula in Vulpecula.

Due to its brightness, the 600-second exposures, and the extraordinary sensibility of the QSI, the central part of the nebula got over exposed, so the fine detail inside was burned. Fortunately, Pixinsight tools recover all this information which is hidden “below”.

The final image is the result of stacking and processing almost three hours total through RGB and H-alpha filters, in 600-second exposures.

Go to this object description and this image technical detail.