This image of M31, the Great Galaxy in Andromeda was acquired using an STL11000 CCD camera
on a Tele Vue NP127is 5" f/5.2 refractor.
The luminance channel is a stack of 9 six minute exposures, while the color channels
are each stacks of 4 eight minute exposures.
The individual source images were calibrated, defect-corrected and stacked, and the luminance channel was Sigmoid scaled,
the resulting files were then color combined and auto-balanced all using AIP4WIN V2.
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