Sunspots

close-up sunspotsInfrared photographs revealed the sunspots
that appear on the surface of our Sun.

Sunspots

  • dark spots on our Sun’s photosphere (surface) are called sunspots.
  • sunspots are 1500’c cooler than the rest of the surface.
  • dark centre of the sunspot is the umbra – the coolest part of a sunspot, around the it is the lighter penumbra.  (photo)
  • sunspots appears in groups that seem to move across the Sun over two weeks, as the Sun rotates. (video)
  • small or individual sunspots may last less than one day.
  • number of sunspots reaches maximum every eleven years – this is called “Solar Cycle or Sunspots Cycle”. (see the video: Eleven years Solar Cycles)
  • next sunspots maximum will be around between 2019 and 2023.
  • when sunspots are at their maximum – the Earth’s weather may be warmer and stormier.

 

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