Sunspots are a weather effect on the Sun that are caused by: Explain
a
Magnetic fields cause plasma on the surface to cool down and turn dark
b
Plasma reactions cause the plasma to change color
c
Extreme solar winds push the plasma to different locations, causing it to change temperature
d
Larger than normal fusion reactions occur in the core, causing sunspots to bubble up to the surface
a. Magnetic fields cause plasma on the surface to cool down and turn dark.
Sunspots are magnetic regions on the surface of the Sun. The Sun's magnetic field lines get twisted and distorted, creating regions of intense magnetic activity. These regions inhibit the convective motion of hot plasma, causing them to cool down and appear darker than their surroundings. The magnetic fields suppress the transport of heat, resulting in lower temperatures within sunspots.