Colour−magnitude diagram in g and r bands of the Crater stars within 50.̋0 from the centre, based on the DES public images. The two target stars are identified as large green dots. Overplotted are shown two PARSEC isochrones for a 7 Gyr and a 2.2 Gyr old stellar population. A reddening correction of E(B−V) = 0.023, as deduced from the maps of Schlegel et al. (1998), has been applied to the isochrones.