Left-hand panel: T_eff, log(g) diagram for the 21 stars analysed spectroscopically. Right-hand panel: CMD for Rup 147 based on Gaia DR2 photometry, with the stars fully analysed indicated by light blue filled squares (MS stars) and orange filled diamonds (giants). The stars with high rotation are indicated by pink filled triangles and the binary by a dark green plus symbol; stars considered members by Curtis et al. (2013) and candidate members based on Gaia astrometry and without HARPS/HARPS-N spectra are shown as empty black circles. In both panels we plot PARSEC isochrones for metallicity Z = 0.017 ([M/H] = 0.07), distance 308 pc (i.e. intrinsic distance modulus 7.44), and age 2.5 and 3.0 Gyr. A reddening E(G_BP − G_RP)=0.15 and an extinction on the GaiaG band A(G)=0.30 are applied to the isochrones in the CMD.