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
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