This image was an exposure of ten luminance imagse of 15 seconds each, ten red images of 15 seconds each, ten green imagse of 15 seconds each, and ten blue images of 15 seconds each. The image was taken with a Alta-U9 attached to an telescope. Each of the images was corrected with a dark frame and a flat field.
I was exploring what could be done with a small set of short exposures.