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05/18/2012 | The K7RA Solar Update
The average daily sunspot numbers for the past week rose nearly 25 points, or about 27 percent, to 117.3. The big day was Monday, May 14 when the daily sunspot number jumped to 156. This was the day after four new sunspot groups, numbered 1481 through 148
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03/23/2012 | The K7RA Solar Update
Solar activity declined this week: The average daily sunspot numbers were off by more than 13 points to 75.1, while the average daily solar flux dropped over 32 points to 102.1. The solar flux dropped barely below 100, but rounded up to 100 as shown on th
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03/16/2012 | The K7RA Solar Update
The average daily sunspot numbers over the past reporting week (March 8-14) were 88.3, a rise of nearly 19 points; the average daily solar flux rose more than 12 points to 134.2. Sunspot numbers for March 8-14 were 86, 96, 89, 103, 89, 80 and 75, with a m
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02/24/2012 | The K7RA Solar Update
We don’t know if this is a significant trend, but solar activity has really leveled off recently. But not everyone is unhappy about this. During the recent long minimum, 160 and 80 meter operators sang the praises of great conditions. In response to my “w
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01/20/2012 | The K7RA Solar Update
New sunspot groups appeared on every day over the past week. On January 12, new sunspot group 1396 appeared, and the next day two more -- 1397 and 1398 -- popped into view. On January 14, four new sunspot groups appeared: 1399, 1400, 1401 and 1402. Januar
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11/23/2011 | The K7RA Solar Update
Not much in the way of solar excitement this week, except there are many sunspots, but the solar activity in terms of flares or coronal mass ejections is low. The overlapping (by one day) average sunspot numbers in this bulletin declined 21 points to 124.
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11/04/2011 | The K7RA Solar Update
First, a few updates on Solar Cycle 24. As you might suspect, the average of daily sunspot numbers for October shot way up -- from 55.5 in June, to 67.2 in July, 66 in August, 106.4 in September and 123.6 in October. Our three month moving average of dail
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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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