Active Region eruption (VIDEO) Royal Astronomical Society This video is under embargo. Please login to access this video. Caption This clip shows the before, during and post eruption state of the Active Region AR11158, with the top left panel showing the AR in 171 wavelength, the top right panel a cutout of HMI magnetogram and the bottom panel a running difference movie. Credit Jhelioviewer Usage Restrictions None. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.