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Hello,
With the moon up and my CCD back
in my sweaty little palms I decided to see how far out M13 goes... I had some
time to reflect on the strengths of the CCD medium... IMHO the most significant
thing is the ability to record 16 bit data right out of the sky. If the data is
preserved in the reduction process, amazing detail will result
(hopefully).
So... this is a series of
10 minute exposures (7) combined with Sigma processing and utilizing a 30
exposure dark frame also processed with Sigma... then into PS as a 16 bit Tiff
and the visual data opened using curves. It's in B&W ... color will follow.
At first glance it looks like
Omega Centuri... but what you are seeing is well beyond the "normal" boundaries
of M 13 ... and I have evened out the luminance considerably... the core vs.
outer area is probably a 1 to 100 brightness ratio ... the beauty of 16 bit
data.
Have a good
one,
Tony
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