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Table 2
Compilation of the metallicity of Galactic open clusters.
| Cluster | [Fe/H] | Reference | N |
|
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| IC 4725 | 0.17 | Cenarro et al. (2007) | c |
| IC 4725 | 0.03 ± 0.08 | Netopil & Paunzen (2013 ) | p |
|
|
|||
| NGC 2420 | −0.44 | Cenarro et al. (2007) | c |
| NGC 2420 | −0.04 ± 0.03 | Pancino et al. (2010) | 3 |
| NGC 2420 | −0.20 ± 0.06 | Jacobson et al. (2011) | 9 |
| NGC 2420 | −0.05 ± 0.02 | Heiter et al. (2014) | c |
| NGC 2420 | -0.31 | Smolinski et al. (2011 ) | 164 |
|
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|||
| NGC 2682 | 0.02 | Cenarro et al. (2007) | c |
| NGC 2682 | 0.05 ± 0.02 | Pancino et al. (2010) | 3 |
| NGC 2682 | −0.03 ± 0.02 | Tautvaišiene et al. (2000) | 10 |
| NGC 2682 | 0.02 ± 0.04 | Yong et al. (2005) | 3 |
| NGC 2682 | 0.03 ± 0.02 | Randich et al. (2006) | 10 |
| NGC 2682 | 0.03 ± 0.04 | Pace et al. (2008) | 6 |
| NGC 2682 | 0.00 ± 0.06 | Heiter et al. (2014 ) | c |
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| NGC 6791 | 0.40 | Cenarro et al. (2007) | c |
| NGC 6791 | 0.32 ± 0.02 | Worthey & Jowett (2003) | 16 |
| NGC 6791 | 0.46 ± 0.08 | Gratton et al. (2006) | 3 |
| NGC 6791 | 0.41 ± 0.03 | Geisler et al. (2012) | 5 |
| NGC 6791 | 0.30 ± 0.02 | Boesgaard et al. (2015) | 40 |
| NGC 6791 | 0.42 ± 0.05 | Heiter et al. (2014 ) | c |
|
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| NGC 7789 | −0.13 | Cenarro et al. (2007) | c |
| NGC 7789 | 0.04 ± 0.07 | Pancino et al. (2010) | 3 |
| NGC 7789 | −0.03 ± 0.05 | Tautvaišienė et al. (2005) | 7 |
| NGC 7789 | 0.01 ± 0.04 | Heiter et al. (2014 ) | c |
Notes. The adopted value is the last of the series for each cluster. The last column, labelled N gives the number of stars observed in the cluster, or c for the compilations and p for the photometric determinations.
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