Tiddukla tasnallunt tagreɣlant (IAU) d tuddsa yeddukklen timettiwin tisnallutin deg umadal, akken yella daɣen d agman deg asqqamu agreɣlan n tmusniwin (ICSU). Igmanen Tismilin d tigrawin Amezruy == Ẓeṛ daɣen ==