Solar cycle 3

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]

Solar cycle 3
Sunspot data
Start date	June 1775
End date	September 1784
Duration (years)	9.3
Max count	264.3
Max count month	May 1778
Min count	12.0
Cycle chronology
Previous cycle	Solar cycle 2 (1766–1775)
Next cycle	Solar cycle 4 (1784–1798)

William Herschel began observing sunspots during this period.

William Herschel began observing sunspots during this period.[4]

See also

• List of solar cycles

References

1. Kane, R.P. (2002), "Some Implications Using the Group Sunspot Number Reconstruction", Solar Physics, 205 (2): 383–401, Bibcode:2002SoPh..205..383K, doi:10.1023/A:1014296529097
2. "The Sun: Did You Say the Sun Has Donuts?". Space Today Online. Retrieved 12 August 2010.
3. SIDC Monthly Smoothed Sunspot Number. ""
4. Vaquero, J.M.; Vázquez, M. (2009). The Sun Recorded Through History. Springer. p. 79. ISBN 0387927905.