data, please.
Gee..go back through the thread to post 82 and look at the darn orbital diagram of Ison again..then ask yourself a serious question.
“Does that line in any way intersect our orbit?”
(No, it does not and never will.)
Post 89 has a link to the final orbit of shoemaker-levy 9.
The debris from that had two years to spread out.
It turned into a wagon train line.
It broke up in the same way ison did.
Now apply those critical thinking skills, as you say you can.