Image Acquisition Information
Telescope: 16" RCOS Ritchey-Chretien Telescope (ion milled at f/9)
Camera: SBIG STL-6303 M
Guiding: Astrodon MOAG AOG (SBIG 237 with .65 FLR)
Filters: Astrodon L, R, G, B
Mount: Software Bisque Paramount ME
Acquisition Programs: The Sky,CCDAutopliot III, CCD Soft.
Processing Programs: CCDStack, Maxim DL, Photoshop
Date:Sept 29 -Oct 7, 2007
Time:30 x 20 min for L (10 hrs) and 20
x 30 min for RGB ( 30 hrs).
Processing: CCD Stack and PhotoShop CS/2
Image Information: NGC 7331 is a bright edge on spiral galaxy often referred
to as our galaxies “twin”. It is believed to harbor a massive black
hole at it’s center, just as our galaxy appears to harbor. It is 50 million light years away .
Processing Comments: RGB Color
combine in Maxim DL. L and RGB combined in Photoshop CS2. Data stretching in Maxim and PS(curves) and further processing
(minimal) in Photoshop CS/2. Image intentionally under processed to decrease artifact.