|
What was the frequency and range of the seeing changes that night ?
Next time try this with a DIMM (or a camera with dual apertures and appropriate software - a link exists somewhere on the net !) to measure the instantaneous FWHM and plot that.
I think you'll find there will be a correlation between the length of sub, period and range of seeing changes and the FWHM captured up to a point where Id expect it would plateau due to averaging.
|