Fascinating. Lets say at 90% the planet spends 1 second inside the sun. Doesn’t seem like enough to melt the whole thing so it just keeps going, just a lot smaller. The core of the sun tried its best to push it back but gets pierced and the fusion reaction stops. Star killer??
I knew my crap science would get the real scientists in the comments, good point about the density. It would just sort of harmlessly splat.