What the Geomagnetic Storm!

 

 Coronal mass ejection (CME) hit Earth's magnetic field at 0600 UT on March 17th. The impact lifted the solar wind speed from 300 km/s to 700 km/s and sparked a moderately strong (Kp=6) geomagnetic storm.

 Camera: Canon 30D
Optics: EF 17-40 f/4L @17mm
Mount: Manfrotto 055
Exposures: 8s, ISO1600