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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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  • 06/05/2009 | The K7RA Solar Update

    It is so great to see some real Solar Cycle 24 sunspot activity this week. Instead of a phantom that pops into view one day and is gone the next, we have sunspot 1019, which has persisted for five days so far. Emerging on Sunday, May 31, the resulting dai
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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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  • 05/22/2009 | The K7RA Solar Update

    Do sunspots matter? Many of us are surprised at how good conditions can be with zero sunspots; the weak solar wind and lack of flares and geomagnetic events likely have something to do with it. Many times during the more active solar periods, sunspots wer
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  • 04/24/2009 | The K7RA Solar Update

    Teased again, on Wednesday, April 22 we saw sunspot 1015 fade away, just as it was about to slip over our Sun's western limb. It emerged only briefly, late on April 21, and by Thursday it had disappeared. Sunspot numbers for April 16 through 22 were 0, 0,
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  • 03/27/2009 | The K7RA Solar Update

    Every day I check the 45 day forecast of planetary A index and solar flux from NOAA and the US Air Force. For quite some time now, the solar flux forecast has been the same: The projection shows 45 days of solar flux at 70, with no variation. I look at th
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  • 03/13/2009 | The K7RA Solar Update

    Last week's bulletin again mentioned briefly appearing sunspots and it happened again this week. For just two days, another Solar Cycle 23 spot appeared, number 1014. The latitude of the spot was consistent with an old and fading solar cycle. As this peri
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  • 02/27/2009 | The K7RA Solar Update

    Excitement mounted a few days ago when new Solar Cycle 24 sunspot 1013 emerged, but two days later it was fading away, similar to other recent sunspot appearances. The sunspot number for February 24-26 was 12, 14 and 12. Today's number will likely be 0. S
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