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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Solar cycle 13 ： ウィキペディア英語版 Solar cycle 13 Solar cycle 13 was the thirteenth 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 11.9 years, beginning in March 1890 and ending in February 1902. The maximum smoothed sunspot number (monthly number of sunspots averaged over a twelve-month period) observed during the solar cycle was 87.9 (January 1894), and the minimum was 2.7.〔SIDC Monthly Smoothed Sunspot Number. "()"〕 There were a total of approximately 938 days with no sunspots during this cycle.〔Spotless Days. "()"〕〔What's Wrong with the Sun? (Nothing) more information: Spotless Days. "()"〕〔Solaemon's Spotless Days Page. "()"〕 There were a number of intense solar proton events during solar cycle 13. For example, a geomagnetic storm in September 1898 affected telegraph lines.〔http://www.solarstorms.org/SRefStorms.html〕 ==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 13」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.