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DaveP I removed the inline link to the image, it was over 300k! Please check the size before using the IMG tags, or have a link to it with a hint to its size, so people can make a choice about whether to download it.
On topic, I've only had 1-2 nights of what i'd call *great* seeing all year, and of course this year I've been noticing thanks to webcam imaging. Of course I haven't been out all night every night, and so I may have missed some.
I have noticed though that early mornings are generally much better than evenings, possibly due to scope cooling down over night, possibly due to lack of turbulence in the air and the steady temperatures at that time of morning.
I'm sure Bird will have some insight.
But Geoff is right, lack of jetstream doesn't guarantee good seeing, but presence of jet stream almost always guarantees bad seeing.
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