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solar cycle

American  

noun

Astronomy.
  1. the variation of sunspots, prominences, flares, and other solar activity through an 11-year cycle.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The reason we have seen more recently is due to the Sun being at the "maximum" of its 11-year solar cycle.

From BBC

A solar cycle is the sun's transition from one solar maximum to the next and is measured through the number of visible sunspots on the surface of the sun, the Met Office said.

From BBC

BBC South West senior broadcast meteorologist David Braine said the years 2025 and 2026 are "believed to be the peak for 'solar cycle 25'".

From BBC

He said: "National Oceanic and Atmospheric Administration's Space Weather Prediction Centre and NASA, based on the published solar cycle 25 predictions, concluded that solar cycle 25 will be very similar to solar cycle 24."

From BBC

Although we are now past the peak of the current solar cycle and heading towards "solar minimum", expected around 2031-32, solar activity will remain relatively high through 2026.

From BBC