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On average, how many years pass between sunspot maximums?

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  1. About 1 year
  2. About 11 years
  3. About 76 years

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References

  1. Astronomy 2e, 15.2 The Solar Cycle openstax.org/books/astronomy-2e/pages/15-2-the-solar-cycle Checked 2026-10-10.

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