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Table 1.
Selection of clusters, taken from the differential abundance analysis of Casamiquela et al. (2021).
| Cluster | NumStars | Age [Gyr] | [Fe/H] |
|---|---|---|---|
| UBC 3 | 4 | 0.20 | −0.081 ± 0.006 |
| NGC 6705 | 12 | 0.30 | 0.047 ± 0.004 |
| NGC 3532 | 5 | 0.39 | −0.034 ± 0.012 |
| UBC 215 | 5 | 0.44 | −0.005 ± 0.023 |
| NGC 2099 | 10 | 0.44 | −0.003 ± 0.009 |
| NGC 7245 | 4 | 0.58 | −0.002 ± 0.013 |
| NGC 6728 | 5 | 0.75 | −0.065 ± 0.020 |
| NGC 6997 | 6 | 0.64 | 0.096 ± 0.008 |
| NGC 2632 | 4 | 0.69 | 0.118 ± 0.014 |
| NGC 6633 | 4 | 0.70 | −0.043 ± 0.005 |
| NGC 2539 | 5 | 0.70 | −0.012 ± 0.004 |
| UBC 6 | 6 | 0.79 | −0.030 ± 0.005 |
| NGC 2266 | 5 | 0.81 | −0.057 ± 0.025 |
| NGC 2355 | 6 | 0.93 | −0.138 ± 0.010 |
| NGC 6811 | 6 | 1.09 | −0.059 ± 0.007 |
| NGC 7245 | 7 | 1.20 | −0.053 ± 0.006 |
| IC 4756 | 9 | 1.31 | −0.063 ± 0.006 |
| NGC 6940 | 6 | 1.38 | 0.009 ± 0.010 |
| NGC 2354 | 6 | 1.44 | −0.144 ± 0.018 |
| Skiff J1942+38.6 | 4 | 1.51 | −0.002 ± 0.009 |
| NGC 7789 | 6 | 1.51 | −0.047 ± 0.018 |
| NGC 6991 | 4 | 1.62 | −0.068 ± 0.009 |
| NGC 6939 | 5 | 1.73 | −0.032 ± 0.015 |
| NGC 2420 | 7 | 1.95 | −0.186 ± 0.017 |
| NGC 7762 | 5 | 2.04 | −0.051 ± 0.010 |
| NGC 6819 | 4 | 2.23 | −0.050 ± 0.010 |
| FSR 0278 | 5 | 2.34 | 0.024 ± 0.007 |
| Ruprecht 171 | 6 | 2.81 | −0.041 ± 0.014 |
| Ruprecht 147 | 4 | 3.09 | 0.053 ± 0.015 |
| NGC 2682 | 6 | 4.16 | −0.075 ± 0.007 |
| NGC 188 | 4 | 7.07 | −0.030 ± 0.015 |
Notes. We indicate the age, the mean cluster metallicity, and the number of RC stars in each cluster.
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