Milwaukee Astronomical Society

 

Aurora Borealis, March 23, 2023

Aurora Borealis, March 23, 2023

 

Photo by Chad Andrist

 

Scope / Lens

Tokina atx-i 11-16mm F2.8 CF

 

Camera

Canon EOS 60D (modified)

 

Other

From Spaceweather.com: Forecasters did not see this one coming. On March 23-24, auroras spread into the United States as far south as New Mexico (+32.8N) during a severe (category G4) geomagnetic storm--the most intense in nearly 6 years. The cause of the storm is still unclear; it may have been the ripple effect of a near-miss CME on March 23rd. These developments may have been caused by the close passage of an unexpected CME. The storm cloud could have left the sun on March 20-21 when SOHO coronagraph data were unusually sparse. We didn't know it was coming. For aurora watchers, it was a welcome surprise.

 

Date

Mar. 23, 2023

 

ID: 1423

Other Images by Chad Andrist