REM (Rapid Eye Mount) is a 60 cm diameter fast reacting telescope located in the La Silla premises of the ESO Chilean Observatory (29°15′S and 70°44′W).
The telescope hosts two instruments: REMIR, an infrared imaging camera, and ROS2, a visibile imager with 4 simultaneous passbands. The two cameras can also observe simultaneously thanks to a dichroic placed before telescope focus the same field of view of 10x10 arcmin. Thus, 5 images are obtained at the same time: g,r,i,z,IR.
The Observatory is operated for INAF by the REM Team, a delocalized group of people.


20 Mar 2020 ◊ Due to the La Silla Observatory shutdown in view of the COVID-19 consequences, REM will accordingly stop observations from Monday, 23rd of March 2020 until further notice. Take care!
28 Jan 2020 ◊ The REMIR camera has found a solution. BUT, due to INAF balance shut down, we are stopped from any initiative until the Admin Council approves the 2020 expenditures. This is likely to happen in February. After that the procedure to reinstall the infrared camera wil take about 6 weeks. We are all VERY sorry about this.
26 Aug 2019 ◊ The techincal failure of the infrared camera REMIR still prevents to allocate infrared observations.