The solar cycle

Our Sun is ever-changing, affecting all life on Earth and our natural environment

1994-1996 As the Sun’s activity began to wane, the number of sunspots per year dropped from about 100 per month in 1994 to 75 in 1996. 1991-1993 At the start of this solar cycle there were about 200 sunspots on the surface of the Sun per month. 1997-1998 The Sun reached its period of solar minimum between these years, falling to almost zero sunspots per month. 1999-2001 The Sun’s activity increased again to a solar maximum, with up to 175 sunspots appearing per month. Our Sun may be a great distance away but its fluctuations and perturbations are still felt here on Earth. Every 11 years the Sun moves from a period of low activity, known as a solar minimum, to a period of high activity, known as a solar…

You're reading a preview of

All About Space Tour of the Universe (Digital) - 1 Issue, All About Space Tour of the Universe 4th Edition

DiscountMags is a licensed distributor (not a publisher) of the above content and Publication through Zinio LLC. Accordingly, we have no editorial control over the Publications. Any opinions, advice, statements, services, offers or other information or content expressed or made available by third parties, including those made in Publications offered on our website, are those of the respective author(s) or publisher(s) and not of DiscountMags. DiscountMags does not guarantee the accuracy, completeness, truthfulness, or usefulness of all or any portion of any publication or any services or offers made by third parties, nor will we be liable for any loss or damage caused by your reliance on information contained in any Publication, or your use of services offered, or your acceptance of any offers made through the Service or the Publications. For content removal requests, please contact Zinio.