This video shows what happened on March 17 when an CME (Coronal Mass Ejection) hit Earths magnetic field. Two days earlier, sunspot AR1692 had produced a M1-class solar flare that resulted in the CME that hit Earth.This time lapse shows what happened during four hours over Östersund here in Sweden, between 19:20 and 23:35 UT.The time lapse consists of 2464 raw images for a total data amount of 30Gb. The photo of the Sun is a hydrogen alpha mosaic made from 10 images that was captured on March 16. Total of 10 Gb data. So all in all this movie contains over 40Gb of data that has been processed over the last 5 days.Photography and video: Göran StrandMusic: I Am a Man Who Will Fight for Your Honor - Chris Zabriskie