Open Cluster M39 in Cygnus

Large but very loose galactic star cluster. About 30 stars 800 light years away with a diameter of 30' or 7 light years.

Images taken with TEC-140 Telescope mounted on Losmandy G11 mount. Camera used was a Canon EOS20D used at prime focus.

Three 1 minute exposures dark compensated, aligned and stacked, background removed and Digitaly Developed in ImagesPlus 2.01