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12/30/2011 | The K7RA Solar Update
The average daily sunspot numbers were up over the past week, 12.3 points -- or about 13 percent -- to 107.6. Likewise, the average daily solar flux rose 14.2 points -- or 11 percent -- to 143.1. Sunspot numbers for December 22-28 were 105, 123, 101, 66,
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12/09/2011 | The K7RA Solar Update
What happened to that new “grand minima”? Solar Cycle 24 just keeps rolling along -- for the first seven days in December, there were eight new sunspot groups. December 5 had the largest sunspot coverage over the past week, with a daily sunspot number of
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11/18/2011 | The K7RA Solar Update
This week geomagnetic indices quieted a bit, as did solar activity in general. On November 9, sunspot numbers reached a high of 220, and this week, they declined, rose to 176 and then declined again. The average daily sunspot numbers slipped 8.4 points to
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11/11/2011 | The K7RA Solar Update
Another sunspot number record for Solar Cycle 24 has been shattered: On Wednesday, November 9, the daily sunspot number reached 220, the highest it has been in more than eight years. The last time the sunspot number was higher than 220 was November 1, 200
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10/28/2011 | The K7RA Solar Update
The day that last week’s bulletin was released --Friday, October 21 -- the daily sunspot number broke another record for Solar Cycle 24 when it rose to 207. You have to look back to November 26, 2003 when it was two points higher – 209 -- to find a number
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10/21/2011 | The K7RA Solar Update
Our Sun continues to be very active, with most days revealing more sunspots. We saw one new sunspot group on October 9, another on October 10, two more on October 11 and two more on October 12. But that’s not all: There was another on October 13, two more
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10/07/2011 | The K7RA Solar Update
Sunspot excitement continues, as we continue to see daily images of our Sun peppered with spots. The average daily sunspot numbers for the week were about the same as the previous week, increasing from 96.1 to 96.7, while the average daily solar flux drop
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09/23/2011 | The K7RA Solar Update
Compared to the uneventful past few years, sunspot activity was truly remarkable this week. The daily sunspot number for September 16 was 173. We haven't see numbers like this in more than six years, when the sunspot number was 181, way back on July 5, 20
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