Abell 2199, a cluster of galaxies in Hercules.
This image is a stack of 31 two minute exposures using a 5" f/6 refractor,
for a total integration time of one hour, two minutes.
The image was calibrated and stacked using AIP4WIN.
This image has been cropped down from its original size of 1258x997.
Click on it to see a full size image.