Notes. Parameters used in this work. From top to bottom we list the optical center of Sculptor, its systemic proper motion, ellipticity, position angle, distance and projected half-light radius. The third column lists the corresponding references, whose numeric code corresponds to: (1) Muñoz et al. (2018); (2) Battaglia et al. (2022), after correcting for the zero-point offset determined with QSOs; (3) Martínez-Vázquez et al. (2015). The ellipticity is e = 1 − a₁/a₂, where a₁ and a₂ are the projected minor and major axes; the position angle is the angle of the major axis measured from north to east.