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Gamma Circini is my best split.
Separation is about .85" and the components are mag 5.1 and 5.5. It takes exceptional seeing and a good scope of at least 8" aperture to split this pair.
I have tried this split on countless times and achieved it only twice. Albeit I have only tried it in scopes up to 10" aperture. On both occasions the split was achieved in my 10"/F5 dob with a 6mm UO HD ortho in my Orion 2X Shorty Plus barlow under superb seeing conditions.
Rod, Do you recall the night at Kulnurra when 5 of us stayed after the rain and everyone else departed? That night when the weather cleared the seeing was superb and we had wonderful views of Jupiter and Saturn in my scope at 450X. Those are the type of conditions you need to split Gamma Circini, sub arc second seeing with a well collimated well cooled scope, which doesn't happen all that often. I have no doubt had we tried to split Gamma Circini that night in my scope, we would have split it.
CS-John B
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