Parameter space used to identify stellar contaminants, for GLADE+ (top left) and DELVE (top right, bottom) objects. Galaxies (blue dots) shown in these plots are objects that appear in at least four input catalogs. Stars (yellow dots) are identified as objects in at most two catalogs that have a Gaia counterpart located within a separation of s < 2 arc seconds and exhibit a proper motion greater than 5 mas/yr. The yellow-shaded region highlights the parameter space selected to isolate Gaia stars, which for the top panels is defined by the condition G − BP − 1 < log (s/arcsec) < min (log(s_max), −0.5(G − BP)), where s_max = 2.5 for GLADE+ and 1.5 for the other catalogs. For the bottom panel, the selection follows the condition log(R₁/arcsec) < (24 − r_K)/10.