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http://www.cosmos.ru/mirrors/stern/Education/whsun.html.
http://www.cosmos.ru/mirrors/stern/Education/whsun.html.
1. Discovery of the Sunspot Cycle
... Timeline . ... 16H. Schwabe, 1843 . 16a. Schwabe paper . ... The weather throughout this year was so extremely favorable that I have been able to observe the Sun clearly on 312 days; however, I counted only 34 groups of sunspots.. From my earlier observations, which I have reported every year in this journal, it appears that there is a certain periodicity in the appearance of sunspots and this theory seems more and more probable from the results of this year.. ... Year . ... 149 . ... 1843 . ...
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Ссылки http://www.cosmos.ru/mirrors/stern/Education/whschwab.html -- 7.9 Кб -- 24.03.2006
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