Am I to believe that this giant planet is just passing through the neighborhood near the solar system, or it is in some sort of orbit? If it is just sort of near is it moving farther away or getting closer?
With built-in inertialess braking, it will be here in 20 years. You’ll know when it joins the massive invasion fleet in the Ort Cloud and begins to send real rods-from-G_D your way ... or maybe just amp up their fields and compress the entire solar system. Tough choices, I’m sure.
Likely there are ten to a hundred planet sized bodies for every star in the Milky Way. A lot would be free-range and harder to spot. This one sings in the radio spectrum and caught attention.