Cadi Ayyad  University, Morocco  

Cadi Ayyad  University, Morocco  

Leuven University, Belgium 

Konkoly Observatory, Hungary

SAA Observatory, Cape Town University

Space Telescope Science Institute Baltimore, USA 

Nicolaus Copernicus Astronomical Center, Poland

CTI Observatory, NOIRLab, La Serena, Chile 

IRAP Institut, France.

President of GEOS, IRAP, MP Observatory, France