The 1859 Carrington Event

By | October 5, 2019

test article image
Solar flare. Source: (wikipedia.org)

There is no denying that the ability of the Earth to sustain life is dependent on the sun - without it, the Earth would be nothing but a frozen rock. However, the sun also has the ability to destroy that life. If the sun were to die, as stars do, it would first become a red giant and expand, either pushing the Earth out of orbit or consuming it. But that is unlikely to happen any time soon. In the meantime, the sun will just have to settle for creating chaos by occasionally emitting solar flares strong enough to disrupt communications systems and power grids.

That’s exactly what happened on September 1, 1859. At approximately 11:18 that morning, amateur astronomer Richard Carrington was viewing the sun through the use of a telescope which projected the image onto a white card. He had just begun to sketch a cluster of dark spots when two bright, white lights erupted from them. They were gone within a few minutes but their effects would last for days. He initially believed his equipment was defective but he would soon learn otherwise.

test article image
Coronal mass ejection. Source: (wikipedia.org)

The solar flare witnessed by Carrington was one of many to occur that week. Clusters of sunspots had been appearing since August 28 of that year, resulting in the auroras being stronger and at a lower altitude than normal. This was an indication that the sunspots had released a coronal mass ejection, which is basically a cloud of plasma, the results of which would be felt days later. However, the CME released by the flare Carrington witnessed reached the Earth in less than eighteen hours.