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 d'REM Team, a delocalized group of people.
23 Mar 2026 ◊ We are pleased to announce that the OPTICON 2026A call for proposals is now open, with 112 hours of observing time available. The call is a coperation with Europlanet, and you can find all details in this PDF file [OPTICON2026A] . Deadline for proposals: 17 April 2026
25 Feb 2026 ◊ Infrared camera REMIR is not operating.
11 Dec 2025 ◊ REM operations are restored. Mirrors were successfully recoated, but possible misalignement in telescope pointing is still possible. Please report to info.rem@inaf.it if you encounter problems. Thank you for all cooperation.
28 Nov 2025 ◊ REM operatins are stopped. Major maintenance, including a brand new mirror coating, willl be finished by 10th December 2025.
08 Nov 2025 ◊ The dome problem is fixed. REM operations are restored. Thanks for your patience (and to the people who helped fixing).