Orbital Determination for Proxima Centauri

In <i>The Three-Body Problem</i>, Liu Cixin describes the orbit of Trisolaris (Proxima b?) as chaotic. It&#x27;s a major aspect of the plot. And this article references Barnes et al. (2016) for the hypothesis that &quot;a passage of Proxima close to α Cen may have destabilized the original orbit(s) of Proxima’s planet(s)&quot;. That&#x27;s pretty cool!

Summary: Proxima Centauri really does orbit Centauri A &amp; B (which orbit each other as a binary system). Before now it was suspected that Proxima Centauri orbited the A&#x2F;B pair, but the data wasn&#x27;t completely convincing (it could have just been swinging by, since it&#x27;s &quot;orbit&quot; takes 1&#x2F;2 million years).