Color–magnitude diagrams of all groups listed in Garcia et al. (2009)’s catalog. Green dots in the background represent the complete list of targets with good photometric quality data in IC 1613. Blue circles represent the OB candidate stars of the associations, and red circles other members. Lejeune & Schaerer (2001)’s 0.2 Z⊙ isochrones are included for reference, shifted to account for distance (DM = 24.27) and foreground reddening E(B−V) = 0.02. Different colors represent different log age, as indicated in the legend.
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