asiair Live stack artifacts

Lascarix

Hi
yesterday night during my photo session with Asiair Pro 1.9.1 (9 97), in live mode some little green artifacts appeared in stacked flow but not in the single frames...
Live mode was calibrate whit dark flat and bias.
Can someone explain to me what kind of problem it is, never experienced before....

I attach some snaps. Thks in avance.

johnpd

Are you using an equatorial or Alt-Az mount? I had some small colored dashes when I used my Alt-Az mount for Live Stack but they were not nearly as bad as what you are showing.

JohnD

Lascarix

it is an Eq mount...avalon mzero.
it is not a bad guiding effect...guide was ok.
it semestre an artifact SW by live stack.
I would understand how to eliminate that...

johnpd

Could you externally stack the individual frames with the same calibration frames and post the results to see what might be in those positions.

Here is the problem I had: https://bbs.astronomy-imaging-camera.com/d/13509-artifacts-in-asiair-live-stack
Chen said it was a combination of hot pixels and poor tracking. But the artifacts were very tiny. Your stars are slightly oblong like mine were so tracking may have been slightly off.

Did you check your dark, bias, and flats to see if anything strange was in those?
What is really weird is the little "hook" down and to the right at the top of each of these artifacts as if the mount was bumped.

JohnD