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So last I tried with an overlay in VLC. It would have worked had I sized the overlay to have circles with diameter TWICE the distance of each star from the pole.
Also, finding the centre of rotation was a little tricky. It's important to pick a star near the pole so it doesn't drift away.
Attached snapshot from VLC shows the rotation of BQ oct.You can see a faint semicircle
Another snapshot with the (correct) alignment overlay. This is a mockup as VLC snapshots exclude the overlay
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