M13 LRGB
M13 is one of the brighter and more prominent Messier objects, found in the constellation Hercules. The cluster includes hundreds of thousands of stars about 22,000 ly from earth. It's a good target for trying new equipment combinations. Here I've tried guided imaging again with my Questar and a mono astrocam. I usually recommend that people try imaging with a color camera because the improvement in image quality that can be achieved with mono imaging comes at the expense of greater capture and processing complexity. Indeed, in this case the target dropped into the trees before I could capture any data with the blue filter, so the colors here may be a bit off from a fully successful imaging session.
Tech Stuff: Questar 3.5" telescope at native 1400mm focal length (f/16)/QHY 163 mono/guided/8 second exposures captured in SharpCap live stacks/ L 14 min; R 14 min; G 7 min/G used in both green and blue channels/Processed with PixInsight and GIMP. From my yard in Westchester County, NY.
M13 LRGB
M13 is one of the brighter and more prominent Messier objects, found in the constellation Hercules. The cluster includes hundreds of thousands of stars about 22,000 ly from earth. It's a good target for trying new equipment combinations. Here I've tried guided imaging again with my Questar and a mono astrocam. I usually recommend that people try imaging with a color camera because the improvement in image quality that can be achieved with mono imaging comes at the expense of greater capture and processing complexity. Indeed, in this case the target dropped into the trees before I could capture any data with the blue filter, so the colors here may be a bit off from a fully successful imaging session.
Tech Stuff: Questar 3.5" telescope at native 1400mm focal length (f/16)/QHY 163 mono/guided/8 second exposures captured in SharpCap live stacks/ L 14 min; R 14 min; G 7 min/G used in both green and blue channels/Processed with PixInsight and GIMP. From my yard in Westchester County, NY.