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  • 02/13/2009 | The K7RA Solar Update

    Sunspots returned this week, or rather, one did, but it is an old Solar Cycle 23 spot. Sunspot 1012 has been visible the last couple of days, February 11-12. It is down near the Sun's equator, typical for spots from a previous cycle. It's nice to have a s
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  • 02/06/2009 | The K7RA Solar Update

    We still have had no hint of sunspots or sunspots to come, though there was some geomagnetic activity on February 4 from a possible coronal mass ejection, raising the planetary A index to 16 that day. Sunspot numbers for January 29-February 4 were 0, 0, 0
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  • 01/30/2009 | The K7RA Solar Update

    On Tuesday, January 27, we saw another one of those "almost-a-sunspot" emerge in the Sun's low latitude, so it was probably an old Solar Cycle 23 spot; it was gone the next day. Sunspot numbers for January 22-28 were 0, 0, 0, 0, 0, 0 and 0 with
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  • 01/23/2009 | The K7RA Solar Update

    Monday revealed another shy sunspot. Sunspot 1011 appeared suddenly, and then it was gone. Its configuration and location did not identify it as belonging to either Solar Cycle 23 or 24. On Monday, January 19 the sunspot number was 13. Sunspot numbers for
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  • 01/16/2009 | The K7RA Solar Update

    A nice sunspot group -- number 1010 -- appeared for five days from January 9-13. Daily sunspot numbers ranged from 11 to 20, and this one was another Solar Cycle 24 appearance. The Cycle 23 sunspots seem to be gone, while the new Solar Cycle 24 isn't pick
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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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  • 12/26/2008 | The K7RA Solar Update

    Snow has fallen all week here in Seattle, and the Sun is still void of spots. We last saw sunspots on December 10, 11 and 12. The solar flux -- a measure of 2.8 GHz radio energy from our Sun -- has been running between 68-69 for weeks, except for December
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