Averaged values of the Hβ and [MgFe]′ (left panel) and 〈Fe〉 and Mgb line-strength indices (right panel) measured inside an aperture of radius r = 0.1r_e (black circles) of NGC 6482. The averaged line-strength indices measured for 0.1r_e < r ≤ 0.5r_e, 0.5r_e < r ≤ r_e, and r > r_e are plotted with circles of different color tone (from darker to lighter), respectively. Blue, green, and red circles correspond to data obtained along the major, diagonal, and minor axes, respectively. The gray lines indicate the models by Thomas et al. (2003). In the left panel, the age-metallicity grids are plotted with two different α/Fe enhancements: [α/Fe] = 0 dex (continuous lines) and [α/Fe] = 0.5 dex (dash-dotted lines). In the right panel, the [α/Fe]-metallicity grids are plotted with two different ages: 2 Gyr (continuous lines) and 8 Gyr (dash-dotted lines).