Seeing monitoring campaign

From 2003 to 2004, a worldwide campaign to find sites for the new generation of telescopes (ELT – Extremely Large Telescopes) has been conducted. The High Altlas was one of the site to be precise characterized. The result was that the observatory benefits of very good observing conditions with a median seeing of less than 1 arcsec.


Z. Benkhaldoun, A. Abahamid, Y. El Azhari, and M. Lazrek, 2005, Optical seeing monitoring at the Oukaïmeden in the Moroccan high atlas mountains: first statistics, Astronomy & Astrophysics, Volume 441

J. Vernin, C. Muñoz-Tuñon, M. Sarazin, 2008 July, E-ELT site characterization status, Ground-based and Airborne Telescopes II, 70121T

M. Sabil, Z. Benkhaldoun, A. Habib, 2017 Sept., European Extremely Large Telescope: Cross-calibration of DIMM Monitors at Aklim Site, International Journal of Computer Applications, Volume 174

Light pollution

MOSS benefit of a very good position in the High Altlas with the National parc Toubkal to its south.

Credit: Light Pollution Atlas 2020, David Lorenz