To get to the Garnet Star from my +4.8 limiting magnitude backyard sky is very easy since it is visible naked eye: at the moment the Garnet Star is a +4 magnitude star (more or less) placed at the vertex of a triangle the base of which is the line connecting α and ζ:
The first attempt at imaging the Garnet star ended after collecting 220x30s subframes for a total of 1hr and 50min exposure using my 10" f/4.7 Newtonian. The camera used was my unmodified Canon XSi at 1600ISO with no light pollution filter. The scope was mounted on a Losmandy G-11 mount and the exposure was autoguided using an Orion Starshoot Autoguider attached to an Orion ST80 guidescope. A Baader Planetarium coma corrector was used to contain coma at the edges of the field of view. Subframes were aligned and stacked in DeepSkyStacker The final image was processed in Photoshop CS2, but half way through I shelved it to come back at a later time and moved to other targets.
After a couple of imaging sessions I grew mildly frustrated with the performance of my 10". It seemed that getting reasonably round star was getting too hard so I decided to move back to my 8" f/4.9 Newtonian. A difference of about 10lbs. would have helped for sure. For some reason I decided to re-image the Garnet Star using the 8". This time around I collected 240x30s subframes for a total of 2hrs exposure. Camera settings were identical and so were the tools used for processing. This time I was pleased with the overall star shape, but I realized how much of a difference 2" make when it comes to collecting light! The image obtained with the 8" was still aestethically pleasing, but not on par with the one obtained with the 10". The region of sky around the Garnet star is very rich because of the presence of the Milky Way so the larger aperture was able to capture more stars and make the bright ones stand out more. For this reason I decided to shelve the final product.
It seemed that I was going nowhere with my project until I ran into a post on the Amateur Astronomy Mailing List mentioning a newly confirmed planetary nebula PM 1-333. A follow-up to that post indicated the new planetary being located only 23 arcmin away from the Garnet star! Since the field of view of my reflectors through my Canon spans about a degree, I realized that PM 1-333 must have been captured in my images. The article that confirms the planetary nature (in the sense of a nebula, of course) of PM 1-333 and other two objects (PM 1-242 and PM 1-318) can be found here.
The coordinate of PM 1-333 are given at p.19 and are:
R.A. 21h 40m 59.1s
Dec +58° 58' 37"
Displaying the field of view of the 10" centered on the Garnet star in Cartes du Ciel and using the coordinates given above I was able to determine where the planetary should have been in my images: