Up 太陽 : 磁場 作成: 2021-12-19
更新: 2021-12-19

NASA から引用:
This comparison shows the relative complexity of the solar magnetic field between January 2011 (top) and July 2014.
In January 2011, three years after solar minimum, the field is still relatively simple, with open field lines concentrated near the poles.
At solar maximum, in July 2014, the structure is much more complex, with closed and open field lines poking out all over – ideal conditions for solar explosions.