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03/26/2010 | The K7RA Solar Update
New sunspot group 1057 appeared on March 23; by March 24, it was 38 times its original size. It covered 10 one-millionths of the solar hemisphere on Tuesday, and on Wednesday, it grew to 380 one-millionths. On Thursday, new sunspot group 1058 appeared, an
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03/12/2010 | The K7RA Solar Update
We experienced a bit of a scare this week when four days went by without sunspots. That's right -- for the first time in three months, we saw more than a single day with a sunspot number of 0, and that last period was back during November 23-December 8.
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03/05/2010 | The K7RA Solar Update
Two new sunspot groups appeared on March 1, numbered 1052 and 1053. The total number of sunspot groups appearing over the last month is 11. Looking at our 3-month moving average of daily sunspot numbers, the latest for December-January-February is 22.4, f
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02/26/2010 | The K7RA Solar Update
Two new sunspot groups -- 1050 and 1051 -- appeared on February 23 and 24. We've now seen 38 continuous days with sunspots (including today); the last time there were no sunspots for two or more days in a row was back on November 23-December 8 when we saw
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02/19/2010 | The K7RA Solar Update
We've now observed sunspots continuously for the past 30 days -- certainly a turnaround from the quiet conditions of the past few years. In fact, in 10 weeks, we have seen only three days with no sunspots: December 25, January 6 and January 19.
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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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02/05/2010 | The K7RA Solar Update
As soon as sunspot 1041 went over the horizon at the end of January, sunspot 1043 emerged, high in our Sun's northern hemisphere. The average daily sunspot number this week fell more than 13 points to 14.6, and average daily solar flux declined nearly 7 p
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Feature
02/01/2010 | It Seems to Us: Where Are the Spots?Sunspots, that is. Those of us who follow solar activity the way most people follow the weather had expected that by now our Sun would have developed a nice pox. Instead, we seem to be stuck in a trough of low solar activity.
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