I just remember the 4 inner rocky planets which is pretty easy, and then the giant outer planets spell JSUN. Asteroid belt in between and the second asteroid b

I just remember the 4 inner rocky planets which is pretty easy, and then the giant outer planets spell JSUN. Asteroid belt in between and the second asteroid belt (the Kuiper belt) on the outside. Then the Oort cloud surrounding the whole thing as a shield to protect the system from alien incursion.