M3 - Globular Cluster in Canes Venatici.
This image uses a stack of 8 eight-minute exposures for the luminance channel
and stacks of 4 eight-minute exposures taken through red, green and blue filters for the colors.
The images were acquired using an STL11000M CCD camera on a Vixen VC200L 8" f/9 Cassegrain reflector.
The raw images were calibrated, defect-corrected and stacked.
They were then deconvolved with 32 iterations of Richardson-Lucy deconvolution.
Finally the color channels were combined and auto-balanced.
All processing was performed using AIP4Win V2
This image has been resampled down from its original size of 1980x1320.