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  • sunspot121109

    12/11/2009 | The K7RA Solar Update

    Finally! A sunspot appeared on Wednesday, December 9, giving us a daily sunspot number of 13, following 16 days of no sunspots. And on December 10, the sunspot number was 13. The new group is number 1034, and it is a Solar Cycle 24 spot, as all sunspots h
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  • 09/18/2009 | The K7RA Solar Update

    The STEREO mission (Solar TErrestrial RElations Observatory) Web site shows a new display, where the Sun is visible via an animated image that rotates to show the whole Sun. The small portion on the Sun's far side -- which is not yet visible to the spacec
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  • 03/20/2009 | The K7RA Solar Update

    This reporting week -- March 12-18 -- there were no sunspots, but we saw a couple of promising magnetic anomalies which faded away before ever emerging as sunspots. Sunspot numbers for March 12-18 were 0, 0, 0, 0, 0, 0 and 0 with a mean of 0. The 10.7 cm
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  • 12/12/2008 | The K7RA Solar Update

    Finally! A sunspot group appeared this week, about three weeks since the last group disappeared. The first spotless day after sunspot group 1008's last appearance was Tuesday, November 18; the last spotless day before group 1009 emerged was Tuesday, Decem
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  • 11/07/2008 | The K7RA Solar Update

    Sunspot 1007 is still there, but probably rotating off the visible solar disk sometime today. This is the eighth sunspot of the new solar cycle -- and also the largest. Sunspot numbers for October 30-November 5 were 13, 16, 16, 17, 18, 14 and 11 with a me
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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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  • 05/09/2008 | The K7RA Solar Update

    Again this week, we saw a new, but brief sunspot, sunspot 993. Judging from the polarity of the spot, it looks to be from new Solar Cycle 24; this spot was south of the solar equator, so it has the same polarity as any Cycle 23 spot that was north of the
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