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Pixinsight StarAlignment Wobble/Tilt

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#1 AnakChan

AnakChan

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Posted 25 February 2021 - 10:24 PM

I've noticed that after I've staraligned, I get the occasional wobble or tilt in some frames. What's causing this? Do I have to sift through and remove those frames or is there some SA setting that I need to change?
I've made a quick video of it (screen recording as the resolutions I was playing with was too big for ffmpeg to generate from Blink) :-

https://youtu.be/YwWI04Bzbvo

And a close up of the top left corner :-
 
https://youtu.be/W8Yp6Pxktqk

Edited by AnakChan, 25 February 2021 - 11:04 PM.


#2 AnakChan

AnakChan

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Posted 26 February 2021 - 12:28 AM

Big thx to Adam Block, switching the Registration Model to Thin Plate Splines enabling Local Distortion fixed my issue.
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#3 AnakChan

AnakChan

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Posted 26 February 2021 - 10:42 PM

The original videos have been deleted at per PixInsight owner's request. Instead I've uploaded a new video of issue and solution for folks who are interested :-

https://youtu.be/6kON23FzcYk


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