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.
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).
24 Oct 2025 ◊ Call for proposal INAF AOT53 (April 1st 2026 - September 30th 2026) is open. The deadline is Monday 24th November 2025 at 12:00 UT. All informations and warning for REM are here . For submission package and form please follow the Proposal link.
22 Sep 2025 ◊ REM AOT52 approved programmes are listed in the GREEN list. The REM team (info@rem.inaf.it) will contact you to complete Phase II.
16 Jul 2025 ◊ DISRUPTION ALERT REM operations are temporalily stopped due to a failure of the dome control (which remains luckily closed). We are working to fix this issue.