The Sun’s Visible Surface The Lower Atmosphere
The Sun in Hydrogen-a The Upper Atmosphere
Sunspot Model Objects that are hotter are brighter. Which bulb is hotter? Which is hotter, the sun’s surface or a sunspot? How do you know?
So, sunspots are way cool! But, what causes sunspots?
Magnetic Winding The sun rotates faster at its equator than at its poles. The sun’s strong magnetic field gets wound up causing part of the fields to rupture the surface where they cause sunspots.
Magnetic fields make cool zones. Fast-moving charged particles are deflected by magnetic fields. The magnetic fields of sunspots deflect hotter gases allowing only cooler gases that experience less of this deflective force.
coronal mass ejections!!! These cause the auroras that we see on Earth.
Why do we have sunspots? What does magnetism have to do with Sunspots? Why do we have a sunspot cycle?