This image of M107 almost wasn't. Data was from early May and it was poor. Seeing was not what was needed for globular clusters and the data had tracking errors. I almost threw it out. But I decided that the image I had of M107 needed update so I took a shot at the data. There was star trailing repair in the processing and I actually used some of the earlier image data to help core definition. The resulting image is at:
http://jthommes.com/Astro/M107.htm
The image data was taken at 2x2 bin and later up sampled to 200% ( like it would be if I had taken the data at 1x1 bin)
Scope - C8 at f/7.5
Artemis285 IR UV Block and RGB filters
G11/Gemini
Guiding - Megrez II 80 mm at 1350 mm FL, DSI Pro, PHD Guiding
The earlier image is here:
http://jthommes.com/MiscAstro/Archives/M107.htm
http://jthommes.com/Astro/M107.htm
The image data was taken at 2x2 bin and later up sampled to 200% ( like it would be if I had taken the data at 1x1 bin)
Scope - C8 at f/7.5
Artemis285 IR UV Block and RGB filters
G11/Gemini
Guiding - Megrez II 80 mm at 1350 mm FL, DSI Pro, PHD Guiding
The earlier image is here:
http://jthommes.com/MiscAstro/Archives/M107.htm
Jim Thommes
Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR
http://jthommes.com/Astro/
I do the same with my binned data. I find that color data seems to fair very well with this methods.
