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apaulo
17-08-2011, 09:42 AM
Hello everyone.

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.

Regards Paul

jase
17-08-2011, 01:51 PM
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.

atalas
17-08-2011, 05:00 PM
Nice shot Paul...M22 is a favorite imaging wise, and a visual treat from a dark site as well.

Greg Bock
18-08-2011, 09:29 AM
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.

apaulo
18-08-2011, 01:46 PM
Yes Jpegs tend to ruin an image.

I have uploaded a larger file, with I hope, less compression.

Regards Paul. :)

Ross G
18-08-2011, 06:16 PM
Very nice shot Paul.


Ross.

midnight
18-08-2011, 11:38 PM
Very nice Paul.

Darrin...

apaulo
20-08-2011, 01:44 PM
Thank you everyone for your encouragement. I reckon you learn something new everytime you post an image.

Regards Paul.

multiweb
20-08-2011, 04:39 PM
Great field :thumbsup: - shame about the compression though.