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  • sunspot031110

    03/12/2010 | The K7RA Solar Update

    We experienced a bit of a scare this week when four days went by without sunspots. That's right -- for the first time in three months, we saw more than a single day with a sunspot number of 0, and that last period was back during November 23-December 8.
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  • sunspot030410

    03/05/2010 | The K7RA Solar Update

    Two new sunspot groups appeared on March 1, numbered 1052 and 1053. The total number of sunspot groups appearing over the last month is 11. Looking at our 3-month moving average of daily sunspot numbers, the latest for December-January-February is 22.4, f
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  • sunspot022510

    02/26/2010 | The K7RA Solar Update

    Two new sunspot groups -- 1050 and 1051 -- appeared on February 23 and 24. We've now seen 38 continuous days with sunspots (including today); the last time there were no sunspots for two or more days in a row was back on November 23-December 8 when we saw
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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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  • sunspot010810

    01/08/2010 | The K7RA Solar Update

    Recent sunspot activity is increasing, and the numbers bear this out. The average daily sunspot number for 2009 was 5 and the average for 2008 was 4.7.
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