Hi All, many of you have probably already seen this. I came across it by accident on Damien Peach's web-site. The pickering seeing scale from 1-10 with actual video simulations of what a focussed star will look like at different seeing conditions. Looking at these I may have to review my seeing ratings down a notch or even two. Don't think I've ever seen beyond 7 on this view, and the last couple of months it's been "1" with a high of "3"
http://www.damianpeach.com/pickering.htm
cheers,