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Astronomy (thesaurus)

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Concept information

solar system > Sun > solar activity > solar cycle

Preferred term

solar cycle  

Definition

  • The solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a nearly periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surface. Over the period of a solar cycle, levels of solar radiation and ejection of solar material, the number and size of sunspots, solar flares, and coronal loops all exhibit a synchronized fluctuation from a period of minimum activity to a period of a maximum activity back to a period of minimum activity. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Solar_cycle)

Broader concept

Entry terms

  • 11-year cycle
  • 22-year cycle

In other languages

URI

http://data.loterre.fr/ark:/67375/MDL-GMS8SKXM-6

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