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  • latest032113

    03/22/2013 | The K7RA Solar Update

    This past week, the average daily sunspot numbers were up 16.2 points to 101.1, while the average daily solar flux remained about the same, rising from 118.5 to 119. An eruption on March 15 caused a coronal mass ejection (CME) that hit Earth on March 17,
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  • latest021513.jpg

    02/15/2013 | The K7RA Solar Update

    Solar activity continues at the low levels that we have seen in the past few weeks. The sunspot numbers have been remarkably consistent, with the average daily numbers for the weeks since January 17 at 56.4, 55.7, 50.7 and finally 51.3 for this past week.
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  • latest011212

    01/13/2012 | The K7RA Solar Update

    The average daily sunspot numbers were up this week by a tiny bit, from 88.1 to 90.6, while the average daily solar flux was down slightly, from 136.2 to 134.9. Sunspot numbers for January 5-11 were 99, 118, 110, 90, 90, 63 and 64, with a mean of 90.6. Th
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  • sunspot011510

    01/15/2010 | The K7RA Solar Update

    The recent sunspot activity that we've been experiencing remains strong. The weekly averages of daily sunspot numbers that we've been reporting over the past six weeks were 1.9, 21.1, 31.4, 21.9, 14.6 -- and now 26.4.
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  • 08/21/2009 | The K7RA Solar Update

    The quiet Sun continues to baffle us. If there are no sunspots today -- and I don't expect any to emerge -- this will be the 42nd day in a row with no sunspots; July 10 was the last day we saw any spots. There is really no way to predict when the next sun
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  • 07/24/2009 | The K7RA Solar Update

    No new sunspots yet, but a big surprise this week with aurora and a geomagnetic storm: Sunspot activity peaked around 0300-0900 UTC on Wednesday July 22, with K index as high as 6. The planetary A index for the day was 24. You can see the K index variatio
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  • MaunderMinimum

    06/01/2009 | NASA Releases New Predictions for Solar Cycle 24

    An international panel of experts -- led by the National Oceanic and Atmospheric Administration (NOAA) and sponsored by NASA -- has released a new prediction for the next solar cycle: Solar Cycle 24 will peak in May 2013 with a below-average number of sun
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