M27 The Dumbbell Nebula CFHT Palette

M27 or the Dumbbell Nebula is a planetary nebula in the constellation Vulpecula.

This is a 6 hours exposure using the Narrowband HSO Filter at the SPA-2 Telescope. The Ha is placed on the Red, the OIII is placed on the Green, and the SII is placed on the Blue. This palette is called the CFHT palette.