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Solar cycle 16 was the sixteenth
During the minimum transit from solar cycle 16 to 17, there were a total of 568 days with no sunspots.Spotless Days.
Solaemon's Spotless Days Page.
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.
Solar cycle 16 was the sixteenth solar cycle
The solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a nearly periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surfa ...
since 1755, when extensive recording of solar sunspot activity began. 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.SIDC Monthly Smoothed Sunspot Number.During the minimum transit from solar cycle 16 to 17, there were a total of 568 days with no sunspots.Spotless Days.
Solaemon's Spotless Days Page.
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.
See also
*List of solar cycles Solar cycles are nearly periodic 11-year changes in the Sun's activity that are based on the number of sunspots present on the Sun's surface. The first solar cycle conventionally is said to start in 1755 when Rudolf Wolf began extensive reporting ...
References
Solar cycles {{sun-stub