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[[File:Sun920607.jpg|thumb|right|The Sun with some sunspots visible.]]
'''Solar cycle 7''' was the seventh [[solar cycle]] since 1755, when extensive recording of solar [[sunspot]] activity began.<ref name="Kane">Kane, R.P. (2002). "[http://www.springerlink.com/content/qtq52nl8vtq7w2t6/ Some Implications Using the Group Sunspot Number Reconstruction]". ''Solar Physics'' '''205(2)''', 383-401.</ref><ref name=SpaceToday>{{cite web | title=The Sun: Did You Say the Sun Has Spots? | url=http://www.spacetoday.org/SolSys/Sun/Sunspots.html | publisher=Space Today Online | accessdate=12 August 2010}}</ref> 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, and the minimum was 7.3.<ref name="SIDC Monthly Smoothed Sunspot Number">SIDC Monthly Smoothed Sunspot Number. "[http://sidc.oma.be/sunspot-data/]"</ref>
'''Solar cycle 7''' was the seventh [[solar cycle]] since 1755, when extensive recording of solar [[sunspot]] activity began.<ref name="Kane">Kane, R.P. (2002). "[http://www.springerlink.com/content/qtq52nl8vtq7w2t6/ Some Implications Using the Group Sunspot Number Reconstruction]". ''Solar Physics'' '''205(2)''', 383-401.</ref><ref name=SpaceToday>{{cite web | title=The Sun: Did You Say the Sun Has Spots? | url=http://www.spacetoday.org/SolSys/Sun/Sunspots.html | publisher=Space Today Online | accessdate=12 August 2010}}</ref> 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, and the minimum was 7.3.<ref name="SIDC Monthly Smoothed Sunspot Number">SIDC Monthly Smoothed Sunspot Number. "[http://sidc.oma.be/sunspot-data/]"</ref>



Revision as of 00:52, 12 August 2014

Solar cycle 7 was the seventh solar cycle since 1755, when extensive recording of solar sunspot activity began.[1][2] 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, and the minimum was 7.3.[3]

See also

References

  1. ^ Kane, R.P. (2002). "Some Implications Using the Group Sunspot Number Reconstruction". Solar Physics 205(2), 383-401.
  2. ^ "The Sun: Did You Say the Sun Has Spots?". Space Today Online. Retrieved 12 August 2010.
  3. ^ SIDC Monthly Smoothed Sunspot Number. "[1]"