Solar cycle 12

Solar cycle 12
Solar cycle 12
	Sunspots recorded during solar cycle 12 (1 September 1883).
Sunspot data
Start date	December 1878
End date	March 1890
Duration (years)	11.3
Max count	124.4
Max count month	December 1883
Min count	3.7
Spotless days	736
Cycle chronology
Previous cycle	Solar cycle 11 (1867-1878)
Next cycle	Solar cycle 13 (1890-1902)

Solar cycle 12 was the twelfth solar cycle since 1755, when extensive recording of solar sunspot activity began.^[1]^[2] The solar cycle lasted 11.3 years, beginning in December 1878 and ending in March 1890. The maximum smoothed sunspot number (SIDC formula) observed during the solar cycle was 124.4 (December 1883), and the starting minimum was 3.7.^[3] During the minimum transit from solar cycle 12 to 13, there were a total of 736 days with no sunspots.^[4]^[5]^[6]

1882[]

A very bright blood-red aurora display happened over New York on 16 April 1882, while significant communication disturbances occurred.^[7] A geomagnetic storm later in that year produced the aurora of November 17, 1882.

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
^ "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]"
^ Storms, Solar (28 July 2017). "Space Weather Newspaper Archives". www.solarstorms.org.

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[Kane-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

[SpaceToday-2] "The Sun: Did You Say the Sun Has Spots?". Space Today Online. Retrieved 12 August 2010.

[SIDC_Monthly_Smoothed_Sunspot_Number-3] SIDC Monthly Smoothed Sunspot Number. "[1]"

[Spotless_Days-4] Spotless Days. "[2]"

[5] 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-6] Solaemon's Spotless Days Page. "[3]"

[7] Storms, Solar (28 July 2017). "Space Weather Newspaper Archives". www.solarstorms.org.

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v t Solar cycles
18th century	Solar cycle 1 (1755 February – 1766 June) Solar cycle 2 (1766 June – 1775 June) Solar cycle 3 (1775 June – 1784 September) Solar cycle 4 (1784 September – 1798 April) Solar cycle 5 (1798 April – 1810 August)
19th century	Solar cycle 6 (1810 August – 1823 May) Solar cycle 7 (1823 May – 1833 November) Solar cycle 8 (1833 November – 1843 July) Solar cycle 9 (1843 July – 1855 December) Solar cycle 10 (1855 December – 1867 March) Solar cycle 11 (1867 March – 1878 December) Solar cycle 12 (1878 December – 1890 March) Solar cycle 13 (1890 March – 1902 January)
20th century	Solar cycle 14 (1902 January – 1913 July) Solar cycle 15 (1913 July – 1923 August) Solar cycle 16 (1923 August – 1933 September) Solar cycle 17 (1933 September – 1944 February) Solar cycle 18 (1944 February – 1954 April) Solar cycle 19 (1954 April – 1964 October) Solar cycle 20 (1964 October – 1976 March) Solar cycle 21 (1976 March – 1986 September) Solar cycle 22 (1986 September – 1996 August) Solar cycle 23 (1996 August – 2008 December)
21st century	Solar cycle 24 (2008 December – 2019 December) Solar cycle 25 (2019 December - present)
List of solar cycles List of solar storms

Solar cycle 12

1882[]

See also[]

References[]