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Table 9
Age estimates for NGC 1904 in the literature.
| Reference | Age [Gyr] | Method | |
|
|
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| Koleva et al. (2008) | 11.99 ± 0.57 | Spectrum fitting | |
| Koleva et al. (2008) | 14.02 ± 0.25 | Spectrum fitting with hot stars | |
| De Angeli et al. (2005) | 10.19 ± 0.08 | Age- ZW metallicity fitting | |
| De Angeli et al. (2005) | 9.92 ± 0.08 | Age- CG metallicity fitting | |
| Santos & Piatti (2004) | 13.2 ± 1.1 | Age-metallicity fitting | |
| Zoccali & Piotto (2000) | 14 | RGB luminosity function | |
| Kravtsov et al. (1997) | 16 ± 1 | CMD isochrone fitting | |
| Kravtsov et al. (1997) | 18 ± 1 | CMD isochrone fitting | |
| Alcaino et al. (1994) | 16 | CMD isochrone fitting | |
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