There’s a hypothesis it’s actually three stars in close proximity, which we see as a single star from our point of view. The hypothesis goes on to state this tri-star system undergoes Chaotic Eras, followed by Stable Eras. During the Chaotic Eras, the three stars come extreme close proximity, wrecking havoc on potential planets and moons in the system. Some scientists are trying to predict when they might next observe this false Supernova illusion, given the last time it occurred and these stars’ distance from Earth. Unfortunately, no closed form solution to this three body problem exists.