| 词条 | Solar cycle 3 |
| 释义 |
|cycle_num=3 |start_date=June 1775 |end_date=September 1784 |duration=9.3 |max_count=264.3 |max_count_date=May 1778 |min_count=12.0 |prev_name=Solar cycle 2 |prev_dates=1766-1775 |next_name=Solar cycle 4 |next_dates=1784-1798 }}Solar cycle 3 was the third solar cycle since 1755, when extensive recording of solar sunspot activity began.[1][2] The solar cycle lasted 9.3 years, beginning in June 1775 and ending in September 1784. The maximum smoothed sunspot number (SIDC formula) observed during the solar cycle was 264.3 (May 1778), and the starting minimum was 12.0.[3]William Herschel began observing sunspots during this period.[4] See also
References1. ^Kane, R.P. (2002). "Some Implications Using the Group Sunspot Number Reconstruction". Solar Physics 205(2), 383-401. {{Solar cycles}}{{Use dmy dates|date=October 2010}}{{DEFAULTSORT:Solar Cycle 03}}{{sun-stub}}2. ^{{cite web | title=The Sun: Did You Say the Sun Has Donuts? | url=http://www.spacetoday.org/SolSys/Sun/Sunspots.html | publisher=Space Today Online | accessdate=12 August 2010}} 3. ^SIDC Monthly Smoothed Sunspot Number. " " 4. ^{{cite book |last1=Vaquero |first1=J.M. |last2=Vázquez |first2=M. |date=2009 |title=The Sun Recorded Through History |url=https://books.google.com/books?id=iWkyiEeiyksC&pg=PA79 |publisher=Springer |page=79 |isbn=0387927905 }} 1 : Solar cycles |
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