Astronomy:Solar cycle 16
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| Solar cycle 16 | |
|---|---|
| Sunspot data | |
| Start date | August 1923 |
| End date | September 1933 |
| Duration (years) | 10.1 |
| Max count | 130.2 |
| Max count month | April 1928 |
| Min count | 9.4 |
| Spotless days | 568 |
| Cycle chronology | |
| Previous cycle | Solar cycle 15 (1913–1923) |
| Next cycle | Solar cycle 17 (1933–1944) |
Radio transmission became common during solar cycle 16, making this the first solar cycle in which radio interference became an issue.
Solar cycle 16 was the sixteenth solar cycle since 1755, when extensive recording of solar sunspot activity began.[1][2] The solar cycle lasted 10.1 years, beginning in August 1923 and ending in September 1933. The maximum smoothed sunspot number observed during the solar cycle was 130.2 (April 1928), and the starting minimum was 9.4.[3] During the minimum transit from solar cycle 16 to 17, there were a total of 568 days with no sunspots.[4][5][6]
Newspaper reports during this period note effects on telegraph systems, but also (in March 1924, January 1926, October 1926, and October 1927) on radio transmission.[7]
See also
References
- ↑ Kane, R.P. (2002), "Some Implications Using the Group Sunspot Number Reconstruction", Solar Physics 205 (2): 383–401, doi:10.1023/A:1014296529097, Bibcode: 2002SoPh..205..383K
- ↑ "The Sun: Did You Say the Sun Has Spots?". Space Today Online. http://www.spacetoday.org/SolSys/Sun/Sunspots.html. 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. https://science.nasa.gov/headlines/y2008/11jul_solarcycleupdate.htm.
- ↑ Solaemon's Spotless Days Page. "[3]"
- ↑ Storms, Solar (28 July 2017). "Space Weather Newspaper Archives". http://www.solarstorms.org/SRefStorms.html.
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