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solar cycle
noun
Astronomy.
- the variation of sunspots, prominences, flares, and other solar activity through an 11-year cycle.
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Example Sentences
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The Sun is currently at a "maximum" in its 11-year solar cycle.
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Increased UK sightings have been helped by the Sun reaching a "maximum" in its 11-year solar cycle.
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Originally the Sun's activity was expected to peak in the latter half of 2025 but scientists from NASA, the US National Oceanic and Atmospheric Agency and the Solar Cycle Prediction Panel announced that the Sun reached its maximum in October 2024.
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I’ve been in Minnesota for almost one complete solar cycle.
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Met Office spokesman Stephen Dixon said increased UK sightings were helped by the Sun being at the peak of an 11-year "solar cycle".
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