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Calculating seing

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#1 Apollo69s

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Posted 16 September 2019 - 05:16 PM

When theres talk about seing on the sky,in combo with a moon pic maybe,its often talk about 7/10  or 5/10--etc..its that the % off clouds on the sky snatched from the daily weather cast report?



#2 jdupton

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Posted 16 September 2019 - 05:25 PM

Apollo69s,

 

   Welcome to Cloudy Nights! I see you are new here.

 

   Regarding seeing and the numbers, these are references to the Pickering Scale, a method for rating seeing.

 

   See the following link for a visual depiction of the numbers on the Pickering Seeing Scale.

http://www.damianpea...m/pickering.htm

 

 

John


Edited by jdupton, 16 September 2019 - 05:25 PM.



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