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05/06/2011 | The K7RA Solar Update
Currently, there are seven sunspot groups that are visible. But even so, the average daily sunspot number is down more than 7 points over the past reporting week (April 28-May 4), when compared to the previous seven days. The average daily solar flux was
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04/23/2011 | The K7RA Solar Update
Both the average daily sunspot numbers and solar flux were both higher for the week: Sunspot numbers up more than 3 points to 93.1 and the solar flux up by 8 points to 117.2. Geomagnetic activity was a bit lower -- with April 20 the most active day -- aft
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04/15/2011 | The K7RA Solar Update
On Wednesday, April 13, the daily sunspot number reached a new high for Solar Cycle 24 when it hit 153. I looked back over this calendar year and saw that the previous high was 137 on March 8, 2011, 16 points lower than Wednesday. That week’s Solar Update
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04/08/2011 | The K7RA Solar Update
Our Sun is still quite active, but sunspot numbers are down this week, when compared with the week before. The average daily sunspot numbers were down nearly 34 points to 68.3, while the average daily solar flux declined nearly 3 points to 111.8. But geom
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03/25/2011 | The K7RA Solar Update
All solar indicators were lower again for the second consecutive week. The average daily sunspot numbers declined more than 28 points from the week before to 40.9, while the average daily solar flux was off more than 18 points to 94.8. But looking at sola
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03/18/2011 | The K7RA Solar Update
The average daily sunspot numbers this week plummeted 45 points to 69, while the average daily solar flux was off over 26 points to 113.1. Sunspot numbers for March 10-16 were 88, 105, 78, 64, 51, 47 and 50, with a mean of 69. The 10.7 cm flux was 131.3,
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03/05/2011 | The K7RA Solar Update
Solar activity is rising again, but the average sunspot numbers and solar flux are down, compared with last week. This week, the average daily sunspot number declined more than 14 points to 50.9, and the average daily solar flux was off 7 points to 96.8.
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02/25/2011 | The K7RA Solar Update
The average solar flux was nearly unchanged this week, up just 0.3 point to 103.8, while the average daily sunspot number was down 4.9 points to 65. Sunspot groups 1161 and 1162 -- which brought so much activity last week -- have now rotated across our Su
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