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Yes, the question of just how bright a galaxy appears has come up a few times in our discussions before. Under dark skies the visual magnitude works well but where there is any significant skyglow, surface brightness is often a better indicator. However, some measure must be applied and based on visual magnitude, the list is very useful. I'm sure if a list was drawn up based on surface brightness, different galaxies would appear and likely exclude some of the brighter vmag-based ones.
Regards, Rob
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