A nice GC taken a few months ago when the sky was clear.
Messier 22 is an elliptical globular cluster in the constellation of Sagittarius. This object is surounded by a range of large young hot stars and old ones varying in luminosity on the HR scale (Hertzsprung-Russell). M22 is one of the nearer globular clusters to Earth at a distance of about 10,600 light-years.
Details
8" F/4 Newtonian Astrograph.
Pentax K-x
30 second subs x 30 + master flat and camera's dark frame substraction.
iso 1600
unguided. Neq6pro.
Processed with DSSbeta PS CS2.
Good capture Paul. I think jpeg artefacts are killing the image though. Perhaps resize the image to reduce the file size before posting. M22 is a great target. Thanks for sharing.
Hi Paul,
yes, this region is one of my favorites in a wide field like this, and the jpg artifacts take away from a very nice image, would love to see it compressed less.