Assertion: sun's cycle | /r/CapableOf | last about 11 years
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Source sentences:
text: Thanks to their efforts, we know that sunspot numbers ebb and flow in cycles lasting about 11 years.
text: This cycle lasts 11 years on average.
text: Solar maximum or solar max is the period of greatest solar activity in the solar cycle of the Sun, where one solar cycle lasts about 11 years.