\begin{table}%t1 \caption{\label{obslog}Observing logs and program stars data.} %\centerline { \begin{tabular}{l l c c c c c c c c c c c } \hline\hline \noalign{\smallskip} Cluster & Star & $\alpha_{J2000}$ & $\delta_{J2000}$ & $B$ & $V$ &$I_{C}$& $R$ & $K_{\rm S}$& $n_{\rm exp}$ & $t_{\rm exp}^{\rm (tot)}$ & $S/N({\simeq}6000~\rm \AA)$ \\ & & (h) & (deg) &(mag) &(mag) & (mag) &(mag) &(mag) & & (s) & \\ \hline Cr~110\tablefootmark{a} & 2108 & 06:38:52.5 & +02:01:58.4 &14.79 &13.35 & -- & -- & 9.76 & 6 & 16200 & 70 \\ & 2129 & 06:38:41.1 & +02:01:05.5 &15.00 &13.66 & 12.17 &12.94 &10.29 & 7 & 18900 & 70 \\ & 3144 & 06:38:30.3 & +02:03:03.0 &14.80 &13.49 & 12.04 &12.72 &10.19 & 6 & 16195 & 65 \\ NGC~2099 (M~37)\tablefootmark{b} & 067 & 05:52:16.6 & +32:34:45.6 &12.38 &11.12 & 9.87 & -- & 8.17 & 3 & 3600 & 95 \\ & 148 & 05:52:08.1 & +32:30:33.1 &12.36 &11.09 & -- & -- & 8.05 & 3 & 3600 & 105 \\ & 508 & 05:52:33.2 & +32:27:43.5 &12.24 &10.98 & -- & -- & 7.92 & 3 & 3900 & 85 \\ NGC~2420\tablefootmark{c} & 041 & 07:38:06.2 & +21:36:54.7 &13.75 &12.67 & 11.61 &12.13 &10.13 & 5 & 9000 & 70 \\ & 076 & 07:38:15.5 & +21:38:01.8 &13.65 &12.66 & 11.65 &12.14 &10.31 & 5 & 9000 & 75 \\ & 174 & 07:38:26.9 & +21:38:24.8 &13.41 &12.40 & -- & -- & 9.98 & 5 & 9000 & 60 \\ NGC~2682 (M~67)\tablefootmark{d} & 0141 & 08:51:22.8 & +11:48:01.7 &11.59 &10.48 & 9.40 & 9.92 & 7.92 & 3 & 2700 & 85 \\ & 0223 & 08:51:43.9 & +11:56:42.3 &11.68 &10.58 & 9.50 &10.02 & 8.00 & 3 & 2700 & 85 \\ & 0286 & 08:52:18.6 & +11:44:26.3 &11.53 &10.47 & 9.43 & 9.93 & 7.92 & 3 & 2700 & 105 \\ NGC~7789\tablefootmark{e} & 5237 & 23:56:50.6 & +56:49:20.9 &13.92 &12.81 & 11.52 & -- & 9.89 & 5 & 9000 & 70 \\ & 7840 & 23:57:19.3 & +56:40:51.5 &14.03 &12.82 & 11.49 & -- & 9.83 & 6 & 9000 & 75 \\ & 8556 & 23:57:27.6 & +56:45:39.2 &14.18 &12.97 & 11.65 & -- &10.03 & 3 & 5400 & 45 \\ \hline \end{tabular}} \vspace*{-2mm} \tablefoot{ \tablefoottext{a} {Star names and $I_{\rm C}$ and $R$ magnitudes from \citet{daw98}; coordinates and $B$ and $V$~magnitudes from \citet{bra03}; $K_{\rm S}$ magnitudes from 2MASS.} \tablefoottext{b} {Star names from \citet{vanz21}; coordinates from \citet{kiss01}; $B$ and $V$~magnitudes from \citet{kalirai01}; $I_{\rm C}$ magnitudes from \citet{nila02}; $K_{\rm S}$ magnitudes from 2MASS} \tablefoottext{c} {Star names from \citet{can70}; coordinates from \citet{stet00} and \citet{las90}; $B$ and $V$ magnitudes from \citet{tw90}; $I_{\rm C}$ and $R$ magnitudes from \citet{stet00}; $K_{\rm S}$ magnitudes from 2MASS.} \tablefoottext{d} {Star names from \citet{fag06}; coordinates from \citet{fan96}; $B$, $V$ and $I_{\rm C}$ magnitudes from \citet{san04}; $B$~magnitude for star~286 and $R$~magnitudes from \citet{jan84}; $K_{\rm S}$ magnitudes from 2MASS.} \tablefoottext{e} {Star names and $V$ and $I_{\rm c}$ magnitudes from \citet{gim98b}; J1950 coordinates from \citet{kun23}, precessed to J2000; $B$~magnitudes from \citet{moc99}; $K_{\rm S}$ magnitudes from 2MASS.}} \end{table}