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Solar cycle 7 : ウィキペディア英語版 | Solar cycle 7
Solar cycle 7 was the seventh solar cycle since 1755, when extensive recording of solar sunspot activity began.〔Kane, R.P. (2002). "(Some Implications Using the Group Sunspot Number Reconstruction )". ''Solar Physics'' 205(2), 383-401.〕〔(【引用サイトリンク】 url=http://www.spacetoday.org/SolSys/Sun/Sunspots.html )〕 The solar cycle lasted 10.5 years, beginning in May 1823 and ending in November 1833 (thus overlapping the Dalton Minimum). The maximum smoothed sunspot number (monthly number of sunspots averaged over a twelve-month period) observed during the solar cycle was 71.5 (November 1829), and the minimum was 7.3.〔SIDC Monthly Smoothed Sunspot Number. "()"〕 ==See also==
*Solar variation *List of solar cycles
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Solar cycle 7」の詳細全文を読む
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