it was a class on romance
As I recal from Astronomy 312 "Stars," the 11-year cycle of the sun is only weakly supported by solar-flare counts. Some scientists, as I recall, believe in a 22-year cycle, and some don't believe the flaring behavior is particularly cyclic at all.
--LAN3 Tue Oct 28 20:20:02 2003
But NASA is more than happy to reenforce the idea:

(check it out-- 400 years of data!)
--LAN3 Tue Oct 28 20:26:15 2003

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