The Sun, with some sunspots visible, during solar cycle 14 (1904).
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 February 1902 and ending in August 1913. The maximum smoothed sunspot number (monthly number of sunspots averaged over a twelve-month period) observed during the solar cycle was 64.2, and the minimum was 1.5.[3] There were a total of approximately 1019 days with no sunspots during this cycle (the second highest of any cycle to date).[4][5][6]
