Issue 19

Fun Fact: The Carrington Event

Fun Fact: the 1859 Carrington Event caused telegraph failures, shocks, fires and extraordinary auroras after a powerful solar eruption.

Fun Fact: On 28 August 1859, a series of sunspots began to form on the surface of our stellar parent. The sunspots quickly tangled the Sun’s magnetic field lines in their area and produced bright, observed solar flares and one — likely two — Coronal Mass Ejections, one major. Upon impact, telegraph systems across Europe and North America, which took the brunt of the impact, failed. In some cases, telegraphs provided electric shocks to operators; in other cases, their lines sparked in populated areas and — in places — started fires. The event produced some of the brightest auroras ever recorded in history. People in New England were able to read the newspaper in the middle of the night without any additional light. Meanwhile, in Colorado, miners believed it was daybreak and began their morning routine. The strength of the Carrington Event is now recognized in heliophysics as a specific class of CME and is named after Richard Carrington.