Dear Ray,
Thanks for your interesting spreadsheet! I'm trying to reproduce part of your results, especially the calculation of the item "FWHM in the chosen atm."
As I understood,
FWHM in the chosen atm = SQRT(seeingFWHM^2 + scopeFWHM^2 + (2.35*guidingRMS)^2)
I'm using Airy's formula
scopeFWHM = 1.028 * Lambda / ObjectiveDiameter.
My results are a bit far from the result of the spreadsheet. Where am I doing it wrong? Many thanks in advance!
Luiz
