KEYWORDS : NORTHERN LIGHTS | AURORA BOREALISAbout this subject quite a number of messages have been posted.The phenomena turns out to show absolutely at random circumstances. Whenever you are lucky to see it and note all particulars of settings,date,time,place and season, you won't see it show up again next time under quite the same circumstances.In C:Program Files Microsoft Flightsimulator 9 Effects, there are 3 sub-files to be found named fx.Aurora1.fx / fx.Aurora2.fx / fx.Aurora3.fxI wonder if some program-technician in the AVSIM community can give us the hint how to alter one or more parameters in those subfiles, in order to have the lightshow start up, each time when some particular circumstances (latitude,season,date,time,weather)are preset in Fs9.Or must this stay the eternal secret of the MSFS-designers??Auroae non semper videre sunt!Paddy.

Well, wish I could help you there, but I like the Latin! How apropos... ;-)Mike Tucson, AZ"You must be the change you wish to see in the world"--Mahatma Gandhi

Sounds great too, Mike!