TNPSC Thervupettagam

Sunshine recession

May 22 , 2020 1437 days 953 0
  • The sun is to enter into the deepest period of ‘sunshine recession’.
  • The sun has reached into a state of ‘solar minimum’.
  • It simply means that the sun is changing its forms.
  • It has been more than 100 days this year since sun has shown zero sunspots. 
  • The cycle of the sun lasts for 11 years. 
  • This is called Solar Cycle as well as Solar Magnetic Activity Cycle.
  • Under Solar Cycle, the solar maximum and solar minimum refers to the periods of maximum and minimum sunspots respectively.
  • The sun spots fade away every 11 years.
  • The sun spots are magnetic in nature.
  • Sunspots were observed in the early 17th century. 
  • It was first observed by Galileo Galilei.

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