[1][2] The solar cycle lasted 12.4 years, beginning in July 1843 and ending in December 1855.

The maximum smoothed sunspot number observed during the solar cycle was 219.9 (February 1848), and the starting minimum was 17.6.

[7] During this cycle, Edward Sabine, Rudolf Wolf, and other scientists recognized that solar disturbances affected the Earth's magnetic environment, so that solar cycles are identical to the Earth's geomagnetic cycles.

The phenomenon now known as geomagnetically induced current was seen for the first time during this cycle – it became apparent on the emerging electric telegraph network.

Francis Ronalds, Honorary Director of the Kew Observatory and Sabine's colleague, received data from telegraph operators on the movements of their magnetic needles for comparison with his own photo-recordings of atmospheric electricity and geomagnetic intensity variations but had insufficient resources to study the causes of the unexpected currents in detail.