Slices of gas density and projected stellar distribution at the formation time in each model of the most massive star with M > 15 M_⊙ (left column), and 1 Myr later (right column), for the n3s3, n3s9, n3s4, and n3s1 simulations. Ionization fronts are indicated by cyan lines. Black dots represent stars, while massive stars are shown in red; massive star symbol sizes are proportional to stellar mass. In n3s1, two most massive stars form: one with 50 M_⊙ at 891 kyr (triggering feedback), and a second with 53 M_⊙ at 1187 kyr. Annotations in each panel are (bottom left) physical scale; (bottom right) mass of the most massive star, total stellar mass within 5.5 pc, total gas mass within 5.5 pc, and number of stars; (top left) model; (top right) simulation time. The color scale represents the gas density.