Oh, see, now that makes much more sense. So... Alcyone, in the Pleiades, is visible, and does have an observable effect on its sisters, right? It's just Alcyone's radiation rings that extend invisibly over many light years through other dimensions, and even though they don't have enough of an effect to be noticed (nor give any hint of their existence in the observable properties of the star itself), they do have enough of an effect to be noticed after all?