​Sunspot Cycle

  • Recently, scientists from Indian Institute of Science Education and Research (IISER) have developed a way of predicting the intensity of activity in the next solar cycle (approximately from 2020 to 2031).
  • Sun-spot cycle:
    • The amount of magnetic flux that rises up to the Sun’s surface varies with time in a cycle called the solar cycle which lasts around 11 years on average.
    • When flux rises to the maximum, large sunspots appear on the surface of the Sun and become visible.
    • Sunspots are regions where the solar magnetic field is very strong. In visible light, sunspots appear darker than their surroundings because they ....
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