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.

---

August 6, 2024. For the good and for the bad, with the calm or with the fury, Guido Chincarini left his footprint in many places. REM adventure started with one of them. In the photo "il Chinca" together with "il Conca" (another maker of the REM) discussing during the gOlem day, on 27th of November, 2023. Rest In Peace.

---

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).