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11 years

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16y ago
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2w ago

Sun spots follow an 11-year cycle, known as the solar cycle. This cycle includes periods of maximum activity (solar maximum) and minimum activity (solar minimum), with the number of sunspots peaking during the solar maximum phase and decreasing during the solar minimum phase.

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Q: Sun spots increase and decrease on a cycle of how many years?
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When you look at the sun what are those little circles called?

I hope you are observing the sun safely! They are the sun spots you've heard about. They increase and decrease in number, over a cycle of about 11 years. Apparently there is a connecton between sunspots and the condition of the sun's magnetic field.


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http://en.wikipedia.org/wiki/Sunspot_cycle The definition for sunspot cycle is "the recurring increase and decrease in the number of sunspots over a period averaging about eleven years."


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