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With these hi-res images I'm always curious which of the stars actually belong to the galaxy and which ones are "noise", i.e., stars that are from our own galaxy "blurring" the view.

I think filtering out "local" stars should be very doable given ML/CV progress.



There is probably some easier way of doing this but if your favourite tool is a hammer, everything starts looking like nails I'm sure :-)


With images taken 6 months apart, spanning earths orbit of the sun, you might be able to detect some parallax motion of the nearest stars.


Propper Motion is usually the greater of the two effects that cause stars to appear in different places. So it's not quite so simple.




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