Solar activity remains very low. At the bottom of the sunspot cycle, any sunspot activity is fleeting. Again, another week passes with no sunspots at all. Spaceweather.com reports no sunspots for the past two weeks, and the total number of spotless days this year is now 213 days, or 73%, matching the percentage of spotless days in 2008.
Average daily solar flux during the week of October 10-16 w...
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Average daily solar flux during the week of October 10-16 w...
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