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Table 1.

Properties of the OCs studied in this work.

Cluster D [pc] log (age [yr])
Num.
D02 K13 GC18 B19 stars
Hyades 48 8.90 8.90 62
NGC 2632 186 8.86 8.92 8.85 8.87 22
Rup 147 284 9.40 9.33 9.30 24

Notes. We indicate the cluster distance D (from Gaia DR2 parallaxes, Gaia Collaboration 2018a) and the ages from Dias et al. (2002, D02), Kharchenko et al. (2005, K13), Gaia Collaboration (2018a, GC18), and Bossini et al. (2019, B19). The number of stars with high resolution spectra is given in the rightmost column.

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