What is the cause of the 11-year long sunspot cycle of the Sun and how does it work?


I know that roughly after every 11 years or so, the magnetic poles of the Sun flip around. And that the sunspot activity on its surface is one of the direct consequences of this happening, but how does it really work?

What’s the physics behind this phenomenon?

And what actually makes the Sun change its polarity so frequently?

Does a similar cycle also exists for other stars? How long or how short is it in those cases if it’s not the same? And what’s the deciding factor here?

Sorry if that’s too many questions but I’m really curious to know more about solar physics ever since I recently came to know that our Sun is currently going through its Solar Minimum. Thanks in advance!

In: Physics

The inner part of the sun spins faster than the outer part. Think of it like if you were twisting some Taffy . Well it gets twisted an twisted more and more at which point the poles flip. And it takes about 11 years for that twisting to flip the poles. That’s what I remember from my college astronomy class

Gravitational pull from Jupiter Earth and Venus which align just over every 11 years and give the internal structure of the Sun a fairly substantial pull.