Quote:
Originally Posted by Merlin66
Markus,
An interesting site....but how do they calculate the seeing in arc sec from the ratings they show??
Different ratings (1&2) can give very similar results - some poor ratings give good seeing and vice versa....
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I have no idea. It was recommended in another thread on IIS and I've been following it since trying to gauge its accuracy. I can't even find a more detailed explanation of exactly what index 1 and 2 actually refer to, but the arcseconds is pretty obvious and easy to follow.
Cheers
Markus