Likwise I find it hard to get above 200x with the seeing here, anything below that is usually a goer in all but the worst seeing. If I can get to 250x or more, I'd consider the seeing excellent....and this almost never occurs...
had a few instances of good Jupiter viewing at 267x on the same night with lots of festoon activity, white ovals and ruffling in the NEB visible, but seing was generally too variable so about 200x was the realistic limit.
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