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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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  • 06/05/2009 | 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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  • 05/22/2009 | 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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  • 05/08/2009 | The K7RA Solar Update

    A Solar Cycle 23 spot appeared for two days -- April 29-30 -- in an area that soon rotated out of view. Sunspot numbers were 15 and 12, but for the last seven days, we haven't seen any spots. This may end soon -- we get the advance word because of the STE
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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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  • 12/26/2008 | The K7RA Solar Update

    Snow has fallen all week here in Seattle, and the Sun is still void of spots. We last saw sunspots on December 10, 11 and 12. The solar flux -- a measure of 2.8 GHz radio energy from our Sun -- has been running between 68-69 for weeks, except for December
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  • 09/26/2008 | The K7RA Solar Update

    This week saw the appearance of another sunspot -- a new Solar Cycle 24 spot -- larger and lasting a little longer than last week's Solar Cycle 23 sunspot. It appeared for two days, September 22 and 23, with sunspot numbers of 18 and 16.
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  • 09/19/2008 | The K7RA Solar Update

    Last week saw another brief sunspot appearance followed by a quick fade. This was an old Solar Cycle 23 spot -- number 1001 -- resulting in a sunspot number of 12 for September 11. Sunspot numbers for September 11-17 were 12, 0, 0, 0, 0, 0 and 0 with a me
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