M33 - Pinwheel Galaxy in Triangulum.
This color image is a composite of a stack of 7 eight minute exposures taken through a luminance filter combined with
stacks of 7 eight minutes exposures taken through red, green and blue filters, using 2x2 binning.
The images were acquired using an SBIG STL11000 CCD camera on a Tele Vue NP127is 5" f/5.2 refractor,
The exposures were calibrated, defect-corrected, stacked and automatically color balanced using AIP4WIN V2.
This image has been resampled down from its original size of 3000x2000.