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  • 07/31/2009 | The K7RA Solar Update

    No sunspot activity this week, and if no sunspot appears today, July 31, the average sunspot number for July will be 5.1; this is down from June's average of 6.6. The monthly average of the daily sunspot number, January-July 2009, is 2.8, 2.5, 0.8, 1.3, 4
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  • 07/17/2009 | The K7RA Solar Update

    We saw a nice run of eight days with a large sunspot, but none have emerged in the six days since. Unlike other recent spots, this one did not appear just for one or two days and then vanish. Sunspot numbers for July 9-15 were 15, 13, 0, 0, 0, 0 and 0 wit
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  • 07/10/2009 | The K7RA Solar Update

    Finally, some sunspot activity to report -- and not one of those phantom spots that appear one day and vanish the next. Sunspot group 1024 first emerged a week ago on July 3 with a daily sunspot number of 17 and the magnetic signature of a new Solar Cycle
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  • 06/19/2009 | The K7RA Solar Update

    I bet you have this memorized: "Solar activity was very low throughout the reporting period, and geomagnetic field activity was at quiet levels during most of the reporting period." Enough said? The first sunspot region of Solar Cycle 24 occurre
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  • 05/29/2009 | The K7RA Solar Update

    That was a nice string of days showing a sunspot -- May 13-19 -- a whole week. Then it was gone, but a few days later on May 23, another Solar Cycle 24 sunspot emerged, this time in our Sun's southern hemisphere. But it was another of those phantom spots.
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  • 05/15/2009 | The K7RA Solar Update

    After weeks of little or no sunspots, it is nice to have something to report: Following multiple false starts, quick-fading spots and knots of magnetic activity that never progressed into actual darkened sunspots, new sunspot group 1017 emerged on Wednesd
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  • Scientists predict that Solar Cycle 24 will peak in May 2013 with 90 sunspots per day on average. [Graph courtesy of Space Weather Prediction Center]

    05/11/2009 | Scientists Predict Solar Cycle 24 to Peak in 2013

    At the annual Space Weather Workshop held in Boulder, Colorado last month, an international panel of experts led by NOAA's Space Weather Prediction Center (SWPC) predicted that Solar Cycle 24 will peak in May 2013 with 90 sunspots per day on average. If t
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  • 05/01/2009 | The K7RA Solar Update

    The data at the end of last week's bulletin showed daily sunspot numbers from April 16-22 as six zeros, then 11. In fact, every day was at zero until April 21, when it was 11; it moved again to zero the next day, April 22. We had just as many zero sunspot
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