Even though there will not be any hit to any of the solar systems, it will be a great disaster to our Earth if it comes nearer. The magnetic fields and the gravitational fields would cause a huge calamity on our Earth. Due to the relationship of gravity between the volcanic activities of the Earth would be broken. There will be a great disaster of tsunami, earthquake and the change of weather will affect each and every creature. If so, that day would be the end of the world.
The planet Nibiru would come through the plane of great circle similar to the sun. Its size and the size of the moon is same. The natural calamities will be more as said before and another worst case is that on 14th February of 2013, polar axis would be shifted while the Earth travels between Nibiru planet X and the great sun.
Truly some of the worst writing I have seen on the internet, and that's saying something.