2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7680A review is given of the possibilities for the study of the kinematics and metallicities of the old populations in galaxies of the Local Group using SALT/PFIS observations of RR Lyrae variables.10 pages,no figures. Science with SALT workshop, in pressAstrophysicsSALT and RR Lyrae variables: Our Galaxy, The Magellanic Clouds and the Local Grouptext