Table 1
Age values of open clusters estimated using our neural network and ages of literature values for both LAMOST RGB and RC stars.
| Cluster | LIT age (Gyr) | Age of RGB (Gyr) | Number of RGB | Age of RC(Gyr) | Number of RC | References |
|---|---|---|---|---|---|---|
| NGC 6811 | 1.00±0.10 | – | 0 | 0.76±0.19 | 6 | 1, 2 |
| NGC 2420 | 2.20±0.30 | 2.16±0.48 | 1 | 2.67±0.92 | 4 | 3 |
| NGC 6819 | 2.38±0.22 | 2.76±0.73 | 6 | 3.14±0.81 | 14 | 4, 5 |
| NGC 2682 | 4.00±0.60 | 5.05±1.23 | 6 | 2.78±0.64 | 2 | 6 |
| NGC 6791 | 9.50±0.30 | 7.06±1.61 | 2 | – | – | 7 |
| Berkeley17 | 10.06±2.77 | 9.01±3.07 | 2 | 7.6±2.04 | 2 | 3, 8 |
| Berkeley 21 | 1.99 | – | 0 | 3.84±1.34 | 2 | 9–11 |
| Berkeley39 | 7.93 | – | 0 | 4.24±1.29 | 2 | 9–11 |
| Berkeley 78 | 2.81 | – | 0 | 4.29±1.28 | 2 | 9–11 |
| Czernik 27 | 1.16 | – | 0 | 0.96±0.26 | 2 | 9–11 |
| FSR0850 | 1.0±0.05 | – | 0 | 1.07±0.38 | 2 | 9–11 |
| NGC 1245 | 1.05 | 3.87±1.00 | 5 | 1.49±0.56 | 12 | 9–11 |
References. (1) Sandquist et al. (2016); (2) Molenda-Żakowicz et al. (2014); (3) Salaris et al. (2004); (4) Anthony-Twarog et al. (2014); (5) Brewer et al. (2016); (6) Stello et al. (2016); (7) An et al. (2015); (8) Bragaglia et al. (2006); (9) Zhong et al. (2020b); (10) Kharchenko et al. (2013); (11) Bossini et al. (2019).
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