I was using my 20" f5 on it at Snake Valley on the weekend. It is an object that needs to be high and good transparency to be visually pleasing, but around 1-2am Sat morning it was stunning. I had looked at it in the 20" before but low in a moderately light polluted area and over the top of a roof line. At SV the core was bright, the dark lane looked like it was drawn with a pencil and the halo "below" the dark lanes was clearly visible.
On Sat night/Sunday morning transparency was nowhere near as good so was not as stunning.
Malcolm
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