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  • Sunspot072210

    07/23/2010 | The K7RA Solar Update

    Sunspot activity increased recently, although it is foolish to call this a trend, since solar activity has great variability. Sunspot group 1087 was visible for 13 days over July 9-21. In millionths of a solar hemisphere, its size was 30, 100, 120, 130, 7
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  • Sunspot051410

    05/14/2010 | The K7RA Solar Update

    This lack of sunspots is bothersome. Thursday -- May 13 -- is the fifth day in a row with no spots, and there is no sign of any change. The solar flux has been declining and is now below 70. The predicted solar flux for May 14-19 is 70, then 74 on May 20,
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  • sunspot040110

    04/02/2010 | The K7RA Solar Update

    Even though this bulletin may arrive a little early (due to the Good Friday holiday on April 2), jokesters are still too late for sneaking any First of April pranks into this bulletin. No matter when you read it, this bulletin is dated April 2 for good re
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  • sunspot012110

    01/22/2010 | The K7RA Solar Update

    A steady stream of sunspot activity continues to dot the Sun. We had just one day with a daily sunspot number of 0 this week -- January 19 (Tuesday) when sunspot group 1040 moved over the horizon.
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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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  • sunspot122409

    12/24/2009 | The K7RA Solar Update

    Many of us are nearly giddy with joy over the recent steady increase in sunspot activity that seems long overdue. Average daily sunspot numbers rose more than 10 points this week compared to last -- from 21.1 to 31.4! The monthly average daily sunspot num
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  • 12/19/2009 | The K7RA Solar Update

    Sunspot activity continued this week; new group 1035 emerged December 14, following group 1034 that appeared December 9. Daily sunspot numbers since December 9 through December 17 have been 13, 13, 13, 12, 14, 28, 38, 30 and 24. Solar flux values have bee
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  • sunspot121109

    12/11/2009 | The K7RA Solar Update

    Finally! A sunspot appeared on Wednesday, December 9, giving us a daily sunspot number of 13, following 16 days of no sunspots. And on December 10, the sunspot number was 13. The new group is number 1034, and it is a Solar Cycle 24 spot, as all sunspots h
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