Its actually not that difficult a split I think. Aperture really helps here to pull in the light of such a dim small object. Seeing is important, but I've never had much of a problem. Can't do it in my Achro but its no problem at all in the 12". Even on nights of average seeing I've seen it because - aperture. The best challenge is when that little white dot is hiding in a diffraction spike. That's turning the difficulty up to 11.
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