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01/09/2009 | The K7RA Solar Update
On Wednesday, January 7, a sunspot appeared very briefly in the lower right portion of the Sun's image. It was so brief that NOAA did not record it on the Space Weather Prediction Center's daily solar data chart for that day. Spaceweather.com reported a s
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01/02/2009 | The K7RA Solar Update
2008 was a year of very low solar activity. More than 40 percent of this year's propagation bulletins reported zero sunspots for their respective weeks. The average daily sunspot number for the year was 4.7; in 2007, it was 12.8. The yearly averages of da
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12/19/2008 | The K7RA Solar Update
Last week's sunspot group was only visible for three days, December 10-12. The average daily sunspot number for all of 2007 was 12.8; if we see no sunspots for the rest of 2008, the average for this year will be 4.7. By comparison, the yearly averages of
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11/26/2008 | The K7RA Solar Update
This is an early bulletin for the Thanksgiving holiday, as ARRL is closed on Friday, the regular day for release of this bulletin. We plan another brief regular propagation bulletin on Monday, December 1 that will contain the propagation numbers for Novem
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10/17/2008 | The K7RA Solar Update
Finally, we are seeing Solar Cycle 24 sunspots that don't emerge on one day, only to evaporate the next. That's right -- sunspots, as in two or more. On Friday, October 10, sunspot 1005 emerged at high latitude over our Sun's eastern limb; that day's suns
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10/03/2008 | The K7RA Solar Update
The sunspot appearance reported last week seems to follow the pattern emerging for most of 2008. A spot will appear for one or two days and then suddenly it is gone. Last week's report mentioned the solar wind being at an all time low. This week, NASA ann
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09/05/2008 | The K7RA Solar Update
We're still looking at a quiet sun, but currently a solar wind is disturbing the Earth's magnetic field. Six meter operators -- after enjoying a fine season of sporadic E propagation this summer -- may see some added excitement from auroral propagation. C
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08/15/2008 | The K7RA Solar Update
Our Sun is still not producing any sunspots. As mentioned in previous bulletins, the peak of the last Solar Cycle was a double peak, so perhaps we are in the midst of an extended bottom. Sunspot numbers for August 7-13 were 0, 0, 0, 0, 0, 0 and 0 with a m
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