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01/07/2011 | The K7RA Solar Update
The average daily sunspot numbers were up nearly 24 points this week to 50, while the average daily solar flux rose more than 9 points to 89.5. The lagging three month average of daily sunspot numbers was down 3.5 points from last month’s average of the p
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12/31/2010 | The K7RA Solar Update
There were no sunspots for a full week, December 18-24. Christmas Day saw a return to sunspot activity, so the last two of those spotless days were in the Thursday through Wednesday reporting period in this bulletin, December 23-29. The average daily suns
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12/24/2010 | The K7RA Solar Update
Sunspots disappeared this week. Five days with no spots is the longest since May 9-19, 2010, when we saw 11 days in a row in which the Sun was spotless. Since then, there has only been the occasional day or two which was spot-free. April 2010 saw 13 conse
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12/03/2010 | The K7RA Solar Update
The average daily sunspot numbers for the week of November 25-December 1 increased only slightly from the previous seven days: 1.3 points to 25.9. Sunspot numbers for November 25-December 1 were 22, 23, 22, 34, 31, 24 and 25, with a mean of 25.9. The 10.7
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11/26/2010 | The K7RA Solar Update
The average daily solar flux declined this week more than 36 points compared to last week, to 24.6. Our reporting week -- which ran until November 24 -- showed the daily sunspot number declining from 40 to 11, but on November 25 the sunspot number rose to
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11/19/2010 | The K7RA Solar Update
Five new sunspot groups appeared in the past nine days, and the average daily sunspot number for the November 11-17 period rose nearly 28 points from the week before to 60.9. The average daily solar flux was up nearly four points to 87.9. Sunspot numbers
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10/15/2010 | The K7RA Solar Update
Solar activity dropped again this week, although it is now gradually strengthening. The average daily sunspot numbers declined nearly 16 points to 11.7, and average daily solar flux dropped more than 5 points to 75.8. Over the next two weeks, the solar fl
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10/08/2010 | The K7RA Solar Update
Solar activity quieted down over the past week. There were no sunspots on Wednesday and Thursday -- October 6-7 -- and the average daily sunspot number declined nearly 18 points to 27.6, compared to the previous week. The average daily solar flux values w
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