MagAO (image) Carnegie Institution Caption The Magellan Telescope with MagAO's Adaptive Secondary Mirror (ASM) is mounted at the top looking down on the 6.5m (21 foot) diameter Primary Mirror. Photo by Moonlight, taken by Yuri Beletsky, LCO/Magellan Staff. Credit Yuri Beletsky, LCO/Magellan Staff Usage Restrictions With credit. 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.