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  • latest031512

    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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  • SolarFlare2010.jpg

    03/06/2012 | Active Sunspot Region 1429 Produces Solar Flares, Coronal Mass Ejections

    An X-1.1 class solar flare erupted from the Sun on Sunday, March 4 at 11:13 PM EST (0413 UTC March 5), sending an explosion of plasma and charged particles -- a coronal mass ejection (CME) -- hurtling through space. Forecasters at NOAA’s Space Weather Pre
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  • Sunspot081310

    08/13/2010 | The K7RA Solar Update

    Sunspot numbers and solar flux increased this week, with the average daily sunspot numbers up more than 32 points to 53, and the average daily 10.7-cm solar flux up more than 3 points to 84.5. These are the numbers from last Thursday through this Wednesda
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  • sunspot011510

    01/15/2010 | The K7RA Solar Update

    The recent sunspot activity that we've been experiencing remains strong. The weekly averages of daily sunspot numbers that we've been reporting over the past six weeks were 1.9, 21.1, 31.4, 21.9, 14.6 -- and now 26.4.
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  • 11/13/2009 | The K7RA Solar Update

    Sunspot region 1029 disappeared after October 30, but not because it faded away -- it was transiting over our Sun's western horizon on its trip around the back side. Six days after it was gone, a new region -- region 1030 -- appeared for several days, Nov
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  • 10/30/2009 | The K7RA Solar Update

    Well, what a week it has been. The solar flux hit 82.3 on Tuesday, the highest recording yet since the first-observed "new cycle sunspot" in January 2008, the "official" visual start of Solar Cycle 24. Even as I write this, the flux is
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  • 09/11/2009 | The K7RA Solar Update

    No new sunspot activity this week, and no emerging sunspots are visible on the far side of the Sun. Sunspot region 1025 (or 11025) that appeared over August 31 and September 1 faded more than a week ago, and the area in which it appeared has just rotated
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  • 06/19/2009 | The K7RA Solar Update

    I bet you have this memorized: "Solar activity was very low throughout the reporting period, and geomagnetic field activity was at quiet levels during most of the reporting period." Enough said? The first sunspot region of Solar Cycle 24 occurre
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