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  • Scientists predict that Solar Cycle 24 will peak in May 2013 with 90 sunspots per day on average. [Graph courtesy of Space Weather Prediction Center]

    05/11/2009 | Scientists Predict Solar Cycle 24 to Peak in 2013

    At the annual Space Weather Workshop held in Boulder, Colorado last month, an international panel of experts led by NOAA's Space Weather Prediction Center (SWPC) predicted that Solar Cycle 24 will peak in May 2013 with 90 sunspots per day on average. If t
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  • 05/01/2009 | The K7RA Solar Update

    The data at the end of last week's bulletin showed daily sunspot numbers from April 16-22 as six zeros, then 11. In fact, every day was at zero until April 21, when it was 11; it moved again to zero the next day, April 22. We had just as many zero sunspot
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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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  • 04/17/2009 | The K7RA Solar Update

    Still no sunspots, and again we saw a prediction for slightly higher solar flux slip away. If you go here and click on any forecast prior to April 14, you will see solar flux numbers at 72 predicted for the end of this month. But in the few days since the
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  • 04/09/2009 | The K7RA Solar Update

    Again, there were no sunspots this week -- same as we've reported for the last three weeks. In this time of the quiet Sun, spaceweather.com has a new feature keeping track of all these days with no spots. On the left side of the page at below the i
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  • 03/20/2009 | The K7RA Solar Update

    This reporting week -- March 12-18 -- there were no sunspots, but we saw a couple of promising magnetic anomalies which faded away before ever emerging as sunspots. Sunspot numbers for March 12-18 were 0, 0, 0, 0, 0, 0 and 0 with a mean of 0. The 10.7 cm
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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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  • 03/06/2009 | The K7RA Solar Update

    There have been no new sunspots since the recent brief three-day appearance of quickly fading sunspot 1013 on February 24-26. It was another Solar Cycle 24 sunspot, but this is not too encouraging, considering how brief and weak it appeared. There are no
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