Right after imaging the Gallardd C/2009 P1 comet, I managed seven subs of five minutes each on the Dumbbell nebula, aka M27, a planetary nebula in Vulpecula. To be fair, M27 needs no introduction, being one of the most prominent planetary nebulae we can enjoy.
As usual, my image lacks a lot of signal in the red channel, because regular DSLR are, by default, pretty much blind in the red part of the spectrum.
M27 has the notable characteristic of featuring a central star that is the largest known white dwarf.