Hi All,
I've been wanting to image this target for a while. I had originally planned to acquire the reflection nebulosity of NGC5367 at a longer focal length but time beat me to it. Instead I had a go with the 16" F/3.5 system. Cometary globules are pretty cool to process, have done a couple of them with
CG4 being the most memorable.
Here's my rendition of
CG12
Processed in CCDStack, MaximDL and Photoshop. Not a large data set but plenty of signal to work with. Took some inverse masks to correctly extract the faint dusty tail. In hindsight, longer sub exposures would have been better but the result turned out ok. Moderate aperture and speed makes collecting the faint stuff a little easier! A couple of background galaxy add a pleasing dimension. I used a subtle application of unsharp mask to get the wisps of reflection nebulosity to stand out. Histogram is white clipped in the blue channel..ugly, but I figured beyond the blue stars I'm not losing any data so have left it as is. I experimented with the history brush for dodging and burning a little with this image. Very capable tool which uses the image itself for enhancement. For those that haven't heard much of the history brush in PS, you view PS wizard Russell Brown's tutorial on it
here.
Thanks for checking it out. Hope you like it!