Color-magnitude diagrams used to differentiate stars according to age. The Padova isochrones for ages 1, 3, 5, 10, 15, 20, 25, 30, 40, and 50 Myr, a metallicity Z = 0.02, a distance modulus μ = 28.61 mag, and intrinsic E(B − V) = 0.05 mag are superimposed. The extinction coefficients were taken from the model of Gordon et al. (2016) with R_V = 3.1 and f_A = 1.0. The stars are color-coded by the age determined based on their positions between consecutive isochrones in each CMD. The black points show stars that do not lie in between consecutive isochrones. The dashed red line shows the luminosity of a main-sequence star with M_ini = 15 M_⊙ and an age of 10 Myr. The black arrow indicates the reddening vector using A_V = 0.1 mag.