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Alan,
The 32" is used in seeing conditions that can be as good as 0.3 arcseconds.
Compared to my site, this is about 10X better then what I can achieve.
Also the 32" has an aperture 3X larger than my own scope.
The small galaxies visible in the 32" are probably beyond the resolution limits of my scope and location site and can therefore be treated as point sources.
As point sources their visibility in an image is dependant on the aperture and exposure time.
The halo on the other hand is not a point source but an extended object and depends on the f/ratio and exposure time.
So you are not comparing apples with apples.
The other issue is how each image is processed.
Clearly the 32" hasn't been processed with the idea to bring out faint detail as illustrated by the inky black background and high contrast.
Regards
Steven
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