Sample parameters of the 44 targets in the Gemini-LIGHTS survey. (A) is an infrared color–color diagram using WISE and 2MASS colors. The dashed line represents a flat spectrum SED, and the gray shaded region are objects with no near-infrared or mid-infrared excess. (B) HR diagram with pre-main-sequence mass tracks (colored lines) and the zero-age main sequence (ZAMS) assuming solar-metallicity mass tracks from Bressan et al. (2012). Targets are classified as: stars with mass >8 M_⊙ (orange x’s), T Tauri stars (pink plus), and Herbig Ae/Be stars (green diamonds). (C) Histogram of estimated age. (D) Histogram of estimated stellar mass. (E) Age vs. stellar mass. (F) Histogram of target distances. Specific target parameter values can be found in Appendix A in Tables 2 and 3. Note that FU Ori is not plotted on the HR diagram as the T _eff temperature is unknown.