\begin{table}%t1
\caption{Observational data of the sample stars.}
\label{tab:log}
%\centerline
{\begin{tabular}{cccccc}
\noalign{\smallskip}
\hline\hline
\noalign{\smallskip}
Star & $v$  & ($b-y$) & obs. date & $t_{\rm exp}$ (s) & $S/N$ \\
\hline
E3    & 12.05 & 0.38 & 10.~May.~2001 & 2 $\times$ 2100 & 90 \\
E5    & 12.82 & 0.33 & 09.~May.~2001 & 2 $\times$ 3000 & 90 \\
E7    & 14.17 & 0.40 & 26.~Mar.~2000 & 4 $\times$ 3600 & 60 \\
E14   & 13.12 & 0.34 & 09.~May.~2001 & 2 $\times$ 3300 & 95 \\
E15   & 13.52 & 0.38 & 10.~Apr.~2001 & 2 $\times$ 4500 & 85 \\
E19   & 12.24 & 0.42 & 08.~Apr.~2001 & 2 $\times$ 2100 & 85 \\
E34   & 13.42 & 0.36 & 11.~May.~2001 & 2 $\times$ 4500 & 90 \\
E45   & 14.18 & 0.44 & 29.~Mar.~2000 & 3 $\times$ 3600 & 40 \\
E56   & 12.18 & 0.38 & 08.~Jun.~2001 & 2 $\times$ 2100 & 85 \\
E64   & 13.72 & 0.37 & 06.~Jun.~2001 & 2 $\times$ 4500 & 100 \\
E79   & 13.55 & 0.37 & 09.~Apr.~2001 & 2 $\times$ 4500 & 90 \\
E86   & 13.74 & 0.39 & 06.~Jun.~2001 & 2 $\times$ 4500 & 100 \\
E95   & 11.95 & 0.52 & 08.~Jun.~2001 & 2 $\times$ 2100 & 80 \\
E99   & 12.38 & 0.34 & 08.~Jun.~2001 & 2 $\times$ 2100 & 90 \\
T1228 & 12.94 & 0.35 & 08.~Jun.~2001 & 2 $\times$ 3300 & 90 \\
E25   & 12.65 & 0.37 & 07.~Jun.~2001 & 2 $\times$ 2100 & 85 \\
T2105 & 13.95 & 0.43 & \multicolumn{3}{c}{\citet{Ran02}}  \\
\hline
E8    & 10.67 & 0.66 & 10.~May.~2001 & 1500 & 50 \\
E12   & 10.32 & 0.64 & 15.~Apr.~2001 & 2 $\times$ 1200 & 75 \\
E60   & 10.87 & 0.67 & 09.~Apr.~2001 & 2 $\times$ 1800 & 70 \\
E98   & 10.88 & 0.66 & 11.~May.~2001 & 2 $\times$ 1800 & 65 \\
T812  & 11.06 & 0.67 & 07.~Jun.~2001 & 2 $\times$ 1800 & 70 \\
\noalign{\smallskip}
\hline\end{tabular}}
\par
\tablefoot{The Str\"omgren photometry is from~\citet{Mei00}. The $S/N$, per 
resolution element (4 pixels), was measured in the Be region. The
 five stars grouped at the end of this and the following tables are the
 red giants.} 
\end{table}