Stars listed in Table 7 are shown on a temperature–luminosity diagram. Pre-main-sequence stars are shown with open symbols and post-main-sequence stars are shown as solid symbols. The shapes encode L _x / L _bol as a "star" for ⩾10 ⁻³, circle for ⩾10 ⁻⁴ to <10 ⁻³, and a square for <10 ⁻⁵ (see Table 7 for values). The PMS evolutionary tracks (thick gray lines) and ZAMS are from Siess et al. (2000). The post-main-sequence tracks (thin gray lines) are from Schaller et al. (1992). The tracks are shown for 2  M _☉, 3  M _☉,  and 4  M _☉. The post-main-sequence tracks were scaled slightly (0%–3% in temperature, 8%–12% in luminosity) to better coincide with the PMS tracks.)