Where is the sun located? What happenes to the suns core?

What three types of solar activity happenes in the photosphere on the sun?

1) The sun is a stat that is located in the middle of the solar system.

2) It gets squeezed together so lightly that four hydrogen nuclei combine to firm form helium atom. This is called nuclear fusion.

3) Solar flares, coronal mass ejection, high-speed solar wind and solar energetic particles.

50.23 i believe is correct but don't quote me on that.