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Old 06-08-2018, 11:08 PM
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Stonius (Markus)
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Join Date: Mar 2015
Location: Melbourne
Posts: 1,495
Quote:
Originally Posted by Merlin66 View Post
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....
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
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