Spsastro Only indicates no stars detected in Live stacking. Skies are clear. No clouds. Focus is perfect. Someone needs to find out what has changed.
When Live Stacking fails, and you restart the process, does it pick up reference stars again? ( I ask because I have never used "Live Stacking.")
If it does, then what could be happening is that ASIAIR cannot stack when images are slightly rotated, and can only stack when there are only small delta-x and delta-y changes. Real programs like AstroPixelProcessor will for example stack images that are even 45º rotated from one another.
If so, there are two things you can do to help uncripple the ASIAIR.
(1) use good polar alignment so there is no field rotation over the duration of the time you wish to stack.
Normally, the polar alignment will just need to be accurate enough to have no visible rotation in a sub-frame. But the field rotation could be large enough between one sub-frame and a much earlier sub-frame.
You can check your subframes by using Layers in programs like Photoshop or Affinity Photo to see if the subframes are slowly rotating.
(2) try to set your camera angle so that one of the axis of the camera is parallel to the declination dovetail plate.
You can do this easily if you can plate solve. The plate solution gives a camera angle -- rotate your camera angle adjuster so that the camera angle is one of the cardinal points -- i.e., as close as possible to camera angle of 0, 90º, 180º or 270º. Within 1 degree is good enough.
Chen
