Solar cycle 14: Difference between revisions
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{{Infobox Solar cycles |
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|cycle_num=14 |
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| ⚫ | '''Solar cycle 14''' was the fourteenth [[solar cycle]] since 1755, when extensive recording of solar [[sunspot]] activity began.<ref name="Kane">Kane |
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|image=PSM V65 D015 Ordinary photograph of the sun.png |
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|start_date=January 1902 |
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|end_date=July 1913 |
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|duration=11.5 |
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|max_count=107.1 |
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|max_count_date=February 1906 |
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|min_count=4.5 |
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|spotless_count=1023 |
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|prev_name=[[Solar cycle 13]] |
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|next_name=[[Solar cycle 15]] |
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|prev_dates=1890–1902 |
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|next_dates=1913–1923 |
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}} |
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[[File:Solar prominences, 1909.jpg|thumb|right|Solar prominences during solar cycle 14 (21 August 1909).]] |
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| ⚫ | '''Solar cycle 14''' was the fourteenth [[solar cycle]] since 1755, when extensive recording of solar [[sunspot]] activity began.<ref name="Kane">{{citation|doi=10.1023/A:1014296529097|year=2002|last1=Kane|first1=R.P.|title=Some Implications Using the Group Sunspot Number Reconstruction|journal=Solar Physics|volume=205|issue=2|pages=383–401|bibcode=2002SoPh..205..383K}}</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 11.5 years, beginning in January 1902 and ending in July 1913. The maximum [[smoothed sunspot number]] observed during the solar cycle was 107.1, in February 1906 (the lowest since the [[Dalton Minimum]]), and the starting minimum was 4.5.<ref name="SIDC Monthly Smoothed Sunspot Number">SIDC Monthly Smoothed Sunspot Number. "[http://sidc.oma.be/sunspot-data/]"</ref> During the minimum transit from solar cycle 14 to 15, there were a total of 1023 days with no sunspots (the second highest recorded of any cycle to date).<ref name="Spotless Days">Spotless Days. "[http://spaceweather.com/glossary/spotlessdays.htm?PHPSESSID=dli444kmrjgre0rjq6l86fv144]"</ref><ref>{{cite web |url=https://science.nasa.gov/headlines/y2008/11jul_solarcycleupdate.htm|archive-url=https://web.archive.org/web/20080714032353/https://science.nasa.gov/headlines/y2008/11jul_solarcycleupdate.htm|url-status=dead|archive-date=14 July 2008|title=What's Wrong with the Sun? (Nothing)|date=11 July 2008|author=Dr. Tony Phillips|publisher=NASA}}</ref><ref name="Solaemon's Spotless Days Page">Solaemon's Spotless Days Page. "[http://users.telenet.be/j.janssens/Spotless/Spotless.html]"</ref> |
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Geomagnetic storms in November 1903, March 1905, and September 1909 affected telegraph lines.<ref>{{Cite web|url=http://www.solarstorms.org/SRefStorms.html|title=Space Weather Newspaper Archives|first=Solar|last=Storms|date=28 July 2017|website=www.solarstorms.org}}</ref> |
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==See also== |
==See also== |
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*[[Solar variation]] |
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*[[List of solar cycles]] |
*[[List of solar cycles]] |
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*[[Sunspot]] |
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==References== |
==References== |
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{{Solar cycles}} |
{{Solar cycles}} |
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{{Use dmy dates|date= |
{{Use dmy dates|date=September 2019}} |
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{{DEFAULTSORT:Solar Cycle 14}} |
{{DEFAULTSORT:Solar Cycle 14}} |
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Latest revision as of 18:21, 16 August 2022
| Solar cycle 14 | |
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 The Sun, with some sunspots visible, during solar cycle 14 (1904). | |
| Sunspot data | |
| Start date | January 1902 |
| End date | July 1913 |
| Duration (years) | 11.5 |
| Max count | 107.1 |
| Max count month | February 1906 |
| Min count | 4.5 |
| Spotless days | 1023 |
| Cycle chronology | |
| Previous cycle | Solar cycle 13 (1890–1902) |
| Next cycle | Solar cycle 15 (1913–1923) |
Solar cycle 14 was the fourteenth solar cycle since 1755, when extensive recording of solar sunspot activity began.[1][2] The solar cycle lasted 11.5 years, beginning in January 1902 and ending in July 1913. The maximum smoothed sunspot number observed during the solar cycle was 107.1, in February 1906 (the lowest since the Dalton Minimum), and the starting minimum was 4.5.[3] During the minimum transit from solar cycle 14 to 15, there were a total of 1023 days with no sunspots (the second highest recorded of any cycle to date).[4][5][6]
Geomagnetic storms in November 1903, March 1905, and September 1909 affected telegraph lines.[7]
See also
[edit]References
[edit]- ^ 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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