The globular cluster M5 in Serpens.
The luminance image consists of 5 eight-minute exposures, with 4 eight-minute exposures for each color.
The images were acquired using an SBIG STL11000M CCD camera mounted on a Tele Vue NP127is
The luminance and color channels were calibrated and stacked, and a Richardson-Lucy deconvolution was applied.
The final color composite was created using the automatic color balance feature of AIP4Win V2.
This image has been resampled and cropped down from its original size of 4008x2672.