Pleiades stars in the CMD using Gaia (top) and 2MASS (bottom) photometric data. Apparent and absolute magnitudes are shown in the left and right panels, respectively. Extinction correction is applied to the model curves when deriving absolute magnitudes. Isolated sources are defined as those with a single Gaia counterpart within 4″. A separate threshold of RUWE < 1.2 is adopted (Section 6.1). For Atlas, a distance estimate of 136.2 pc is used (G. Torres et al. 2025).