From a WIRED article today: "Solar flares rise and fall on an 11-year cycle, and last year marked what scientists thought was the solar minimum. But through the beginning of 2009, the sun stayed unusually quiet. That changed yesterday, when a major sunspot appeared on the backside of the sun, where it was captured by NASA’s STEREO instrument."
The NASA stereo images were nice, but the amazing picture above was taken from a backyard in Buffalo, New York by solar photographer Alan Friedman.
It seems like the effects of this new prominence will be felt here on earth on May 8. Woo Hooo! Maybe my WSPR signal will cross new oceans!
Free e-Book version of The ARRL Antenna Book
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Many thanks to Alex (KR1ST), on Mastodon, who notes that the e-Book version
of The ARRL Antenna Book 25th Edition is free on the ARRL website. Simply
go t...
2 hours ago
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