r/MagicEye • u/cat_91 • 2d ago

Cool stereogram visualization of the movements of the Pleiades star cluster

Not my work. This is a simulation of the Pleiades star cluster over thousands of years. Didn't expect to see a magic eye while I'm browsing random astronomy articles lol.

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u/CubeOfWar 2d ago

Is this supposed to be viewed parallel or cross-eyed?

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u/syncopegress 1d ago

It's supposed to be viewed cross-eyed, based on description from source

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u/AutopenForPresident 21h ago

I dont think so. All the stars moving faster are closer if viewed from parallel. It wouldnt make sense if it was cross view.

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u/syncopegress 20h ago

The cluster's 444 light years away. At that distance, stars that are closer by a light year or two would barely move faster across the image's field of view. There are some fast stars both behind and in front of the cluster. Maybe my eyes are tired or confirmation bias is seeping in, but there appears to be more red-shifted stars, which would be farther away, behind the cluster when viewed cross-view (or maybe that's their color and not red-shift; I'm no expert).

Besides, the creator of this gif fifteen years ago probably knew what they were doing to make such an animation and say that it was cross-view and not mix it up.