Evolution of the inner edge and outer edges of the HZ (top and bottom, respectively) as a function of the time for stars of 0.3 (black), 0.5 (dark green), 0.6 (yellow-green), 0.7 (gold), 0.8 (orange), 0.9 (red), 1.0 (brown), 1.1 (grey), 1.2 (chartreuse), 1.3 (blue), 1.4 (deep sky blue), 1.5 (cyan), 1.6 (turquoise), 1.7 (purple), 1.8 (pink), 1.9 (magenta), and 2 (navy) M_⊙ with Z_⊙. Dashed lines represent stars outside of the theoretical range of application of the Kopparapu et al. (2014) prescription.