After many years with my trusty
Notes:
* I was taking 3 minute exposures using the ASIAIR+. The images on the ASIAIR screen seemed “normal.” Total intergration time was 7 hours.
* My only filter was an UV/IR cut filter attached next to the camera (ASI 294
* Guiding was fine
* I’ve run the stack of FITS light files through
* Flats, Darks, and Dark Flats were used
* no moon
* I was imaging at the Fra600’s native 600 mm
* The jpg images that were saved all show this weird mottling (even the saved jpg images in the ASIAIR folder)(the lights I used for stacking were only FITS files)
* Camera was cooled to -10C
* Previously, there were no problems the few times I used the focal reducer with this telescope (i.e., problem seems to be with capturing not the scope)
I have never encountered this problem before and would appreciate any and all thoughts/speculations, etc.