The Code wrote:1: What is the furthest our sun can be seen with the naked eye ? (light years)
It depends on how sensitive your vision is. If we assume that the dimmest star a person can see has an apparent magnitude of 6.5, and given the Sun's absolute magnitude of 4.83, the distance you are looking for is 21.6 pc, or about 70 ly.
2: Next year, sun spot activity will peek, What is the root cause for this ? ( All the reasons why )
It may or may not actually peak next year, given the rather unusual current cycle. The primary 22-year solar cycle (which produces sunspot peaks every 11 years) is the result of differential rotation of the convective regions of the Sun, which alters the way that magnetic field lines are directed. This affects convective processes, and results in localized cool zones on the surface- sunspots.
3: Does the magnetic pole shift, have anything to do with us crossing the galactic plane next year ?
No. And we are not crossing the galactic plane next year, either.