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Under or over?
Just a little experiment here! Attached are two double-images of comet C/2020 F3 (NEOWISE). You probably get the idea - you have to cross your eyes to create a third, central "3D" image. Sitting back from the monitor and relaxing makes it easier.
I know that not everyone sees these the same - which one shows the comet in front of the stars, A or B?
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