Location of the components of GV Nor in the log (T_eff) − log (g) diagram (upper panel), log (age) – radius diagram (centre panel) and H-R diagram (lower panel). The Granada evolutionary tracks for 2.61 M_⊙ (solid black line) and 2.84 M_⊙ (dashed black line), corresponding to the primary and secondary stars, are plotted for Z = 0.010 in the upper and centre panels. The centre panel displays the radial evolution of the component stars. The Padova isochrone line for an age of 340 Myr is indicated by the dashed black curve superimposed on the H-R diagram. The numbers on the left of the ZAMS (Zero Age Main Sequence) in the H-R diagram denote initial masses. The colored and the black solid lines for the inscribed masses display the evolutionary tracks of stars with these masses in the range of ZAMS to TAMS (Terminal Age Main Sequence). In all diagrams, filled and open circle symbols represent primary and secondary components, respectively.