Our Explosive Sun by Pal Brekke

Author:Pal Brekke
Language: eng
Format: epub
Publisher: Springer New York, New York, NY

Sunspot Cycle

Every 11 years or so the Sun goes through a period we call “solar maximum,” where there are many large sunspots. About 5 years later, the Sun will enter “solar minimum,” where there are few or no spots. By keeping track of the number of sunspots, we can follow the pulse of the Sun and how the magnetic forces and number of storms are changing. We have a good record of sunspots starting in 1610, when Galileo used his telescope.

Some days there are no visible sunspots; other days there can be many large ones (SOHO/ESA/NASA).

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