Solar cycle 13

Solar activity from March 1890 to January 1902

Solar cycle 13
The solar corona during an eclipse in solar cycle 13 (1893).
Sunspot data
Start date	March 1890
End date	January 1902
Duration (years)	11.8
Max count	146.5
Max count month	January 1894
Min count	8.3
Spotless days	934
Cycle chronology
Previous cycle	Solar cycle 12 (1878–1890)
Next cycle	Solar cycle 14 (1902–1913)

Solar cycle 13 was the thirteenth solar cycle since 1755, when extensive recording of solar sunspot activity began.^[1]^[2] The solar cycle lasted 11.8 years, beginning in March 1890 and ending in January 1902. The maximum smoothed sunspot number observed during the solar cycle was 146.5 (January 1894), and the starting minimum was 8.3.^[3] During the minimum transit from solar cycle 13 to 14, there were a total of 934 days with no sunspots.^[4]^[5]^[6]

There were a number of intense solar proton events during solar cycle 13,^[7] as well as geomagnetic storms such as in September 1898 which affected telegraph lines.^[8]

References

^ 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, S2CID 118144552
^ "The Sun: Did You Say the Sun Has Spots?". Space Today Online. Retrieved 12 August 2010.
^ SIDC Monthly Smoothed Sunspot Number. "[1]"
^ Spotless Days. "[2]"
^ Dr. Tony Phillips (11 July 2008). "What's Wrong with the Sun? (Nothing)". NASA. Archived from the original on 14 July 2008.
^ Solaemon's Spotless Days Page. "[3]"
^ Peristykh, A. N.; Damon, P. E. (17–25 August 1999). Multiple Evidence of Intense Solar Proton Events During Solar Cycle 13. Proceedings of the 26th International Cosmic Ray Conference. 26th International Cosmic Ray Conference (Icrc26). Vol. 6. pp. 264–267. Bibcode:1999ICRC....6..264P.
^ Storms, Solar (28 July 2017). "Space Weather Newspaper Archives". www.solarstorms.org.

Solar cycles

18th century

1740–1759	Solar cycle 1 (1755 Feb – 1766 Jun)
1760–1779	Solar cycle 2 (1766 Jun – 1775 Jun) Solar cycle 3 (1775 Jun – 1784 Sep)
1780–1799	Solar cycle 4 (1784 Sep – 1798 Apr) Solar cycle 5 (1798 Apr – 1810 Aug)

19th century

1800–1819	Solar cycle 6 (1810 Aug – 1823 May)
1820–1839	Solar cycle 7 (1823 May – 1833 Nov) Solar cycle 8 (1833 Nov – 1843 Jul)
1840–1859	Solar cycle 9 (1843 Jul – 1855 Dec) Solar cycle 10 (1855 Dec – 1867 Mar)
1860–1879	Solar cycle 11 (1867 Mar – 1878 Dec) Solar cycle 12 (1878 Dec – 1890 Mar)
1880–1899	Solar cycle 13 (1890 Mar – 1902 Jan)

20th century

1900–1919	Solar cycle 14 (1902 Jan – 1913 Jul) Solar cycle 15 (1913 Jul – 1923 Aug)
1920–1939	Solar cycle 16 (1923 Aug – 1933 Sep) Solar cycle 17 (1933 Sep – 1944 Feb)
1940–1959	Solar cycle 18 (1944 Feb – 1954 Apr) Solar cycle 19 (1954 Apr – 1964 Oct)
1960–1979	Solar cycle 20 (1964 Oct – 1976 Mar) Solar cycle 21 (1976 Mar – 1986 Sep)
1980–1999	Solar cycle 22 (1986 Sep – 1996 Aug) Solar cycle 23 (1996 Aug – 2008 Dec)