Scope: Celestron 11″ EdgeHD with Celestron 0.7 focal reducer
Mount: CGEM DX
Camera: Atik 490ex
Guiding: Atik OAG, IMG0H, PHD
Processed using AstroArt 5.0, Registar, Straton, and Photoshop CS5.
This is M27, the Dumbbell Nebula, which is a planetary nebula in the constellation of Vulpecula. For a planetary nebula it has a large angular size and is quite bright in Ha and [OIII] emission. Even so I was absolutely delighted to be able to bring out the outer halo with only two hours worth of data.
Ha 6 x 600s, [OIII] 6 x 600s