Anonymous asked in Science & MathematicsAstronomy & Space · 8 years ago

what would be the effect on earth if a sunspot grew to 1/3 rd of the surface of the sun?

i believe that sunspots create the potential for CME's (coronal mass ejections) and if so what would be the timeframe between the creation of the sunspot and the CME ...

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    That's two questions. The root cause for both sunspots and CMEs are the interaction of magnetic field lines. When they reconnect, they release excess energy and cause solar storms such as sunspots, solar flares, and CMEs. They only carry so much energy, however, so the idea of a sunspot 1/3 the size of the sun is impossible. It's similar to why a hurricane on earth cannot exceed category 5. Because there is only so much energy available due to heating and the Coriolis effect.

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