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  • latest102011

    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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  • latest092911

    09/30/2011 | The K7RA Solar Update

    Our Sun has been very active this past week, with the average solar flux rising nearly 12 points to 155.5, while the average daily sunspot numbers dropped nearly 41 points to 96.1. This implies fewer, but more intense, sunspots. Sunspot numbers for Septem
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  • latest092311.jpg

    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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  • latest081111

    08/12/2011 | The K7RA Solar Update

    The average daily sunspot numbers declined more than 24 points to 75.1 this week, while the average daily solar flux was down more than 12 points to 104.3. We saw solar flares recently, with a substantial geomagnetic upset on Friday and Saturday -- August
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  • latest042811

    04/29/2011 | The K7RA Solar Update

    Geomagnetic conditions are quiet this week, but they may become slightly unsettled over this weekend. The average daily sunspot numbers were down more than 18 points to 74.9, while the average daily solar flux was off less than 4 points to 113.4. Sunspot
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  • latest042211

    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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  • latest041411

    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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  • latest040711

    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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