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  • Sunspot052010

    05/21/2010 | The K7RA Solar Update

    Eleven days with no sunspots, but something emerged late Thursday, and it may be the return of old sunspot group 1069. Sunspot group 1069 was visible from May 4-8 before disappearing over the horizon. The return of that sunspot gives a daily sunspot numbe
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  • Sunspot050610

    05/07/2010 | The K7RA Solar Update

    Sunspots made a strong return this week -- and so did geomagnetic activity. The average daily solar flux increased 4.2 points to 79.6; on Wednesday, May 5, the daily sunspot number reached 77, the highest in nearly four years. The sunspot number hasn’t be
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  • sunspot021610

    02/12/2010 | The K7RA Solar Update

    Increasing sunspot activity continues. A glance at the image from NASA's STEREO mission shows a string of active regions in the Sun's northern hemisphere, both visible and over the horizon on the far side.
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