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