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- July 31, 2008: A Big Thanks!
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The K7RA Solar Update (May 9, 2008)
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 equator. After two days it was gone, not from drifting over the edge of the visible solar disk — it just disappeared.
http://www.arrl.org/news/stories/2008/05/09/10090/?nc=1