\begin{table}%t2 \caption{\label{table:tests}New age estimates for the three test-cases discussed in this paper.} %\centerline { \begin{tabular}{lcccccccc} \hline\hline \multicolumn{1}{c}{Name} & \multicolumn{1}{c}{RA} & \multicolumn{1}{c}{Dec} & \multicolumn{1}{c}{Age} & \multicolumn{1}{c}{[Fe/H]} & \multicolumn{1}{c}{$\Delta K$} & \multicolumn{1}{c}{Age (1)} & \multicolumn{1}{c}{Age (2)} & \multicolumn{1}{c}{Age (3)} \\ %\hline & hh:mm:ss & $^{\circ}$~:~$^{\prime}$~:~$^{\prime\prime}$ & [Gyr] & & [mag] & [Gyr] & [Gyr] & [Gyr] \\ \hline NGC~6791 & 19:20:53 & $+$37:46:18 & 8.0 & $+$0.40 & 4.40 $\pm$ 0.20 & 9.3 $\pm$ 1.3 & 6.5 $\pm$ 0.5 & 6.0 $\pm$ 0.5 \\ NGC~2141 & 06:02:55 & $+$10:26:48 & 2.5 & $-$0.26 & 3.20 $\pm$ 0.20 & 2.2 $\pm$ 0.2 & 2.4 $\pm$ 0.2 & 2.3 $\pm$ 0.2 \\ Berkeley~17~& 05:20:36 &~$+$30:36:00~ & 9.0 & $-$0.10 & 4.60 $\pm$ 0.20 & 10.0 $\pm$ 1.4 & 7.6 $\pm$ 0.6 & 7.0 $\pm$ 0.7 \\ \hline \end{tabular}} \medskip \par The last three columns list the ages determined from Eqs.~(1)--(3), respectively. References for the literature ages and abundances are given in the text. \end{table}