Left: the combined PS1-LBC CMD of all sources within the central 2r_h region of Lae 2/Tri II. The single epoch PS1 photometry was used at the bright end (i_P1,0 < 19; squares), with LBC photometry supplementing the faint end (i_P1,0 > 19; large dots). The orange dashed line indicates the separation between the LBC and PS1 data. The red box highlights the clear main sequence of the stellar system, the blue box indicates two possible HB stars, and the green box identifies likely blue stragglers. Right: spatial distribution of all sources corresponding to the CMD on the left. Large dots correspond to the stars falling within the red CMD box in the left panel and show a clear overdensity. The two blue stars indicate the possible HB stars, whereas the red ellipse corresponds to the region within the favored two half-mass–radius of the system, as inferred below.