"Assume sol is part of a binary couple (or more) and Wormwood is a degenerate star (or planet) with a hellacious magnetic field. It might have moons and surely asteroids. Thanks, good input. I have always viewed Wormwood as a ,(1.) large near-miss comet (that left many impacted fragments),(2.) a comet that impacted or (3.) something similar to what you described.
Only the latter fits a calendar, and the prophecy.