\begin{table}%t3
\caption{Stellar properties.}\label{stellar}
%\centerline
{
\begin{tabular}{lccccc}
\hline
\hline
\multicolumn{1}{l}{Source} &
\multicolumn{1}{c}{Var. type} &
\multicolumn{1}{c}{$P$} & 
\multicolumn{1}{c}{$D$} &
\multicolumn{1}{c}{$L_{\star}$} &
\multicolumn{1}{c}{$T_{\star}$}\\
&
&
\multicolumn{1}{c}{[days]} &
\multicolumn{1}{c}{[pc]} &
\multicolumn{1}{c}{[$L_{\odot}$]} &
\multicolumn{1}{c}{[K]} 
\\
\hline
R Scl        & SRb & 370 & $290^2$ & 4300 & 2625 \\
U Cam      &  SRb &  400 & $430^2$ & 7000 & 2695 \\
U Ant        &  Lb  & -- & $260^1$ & 5800 & 2810 \\
V644 Sco &  Lb  & -- & $700^3$ & 4000 & 2615 \\
DR Ser     &  Lb  & -- & $760^3$ & 4000 & 2650 \\
S Sct         &  SRb & 148 & $400^1$ & 4900 & 2755\\
TT Cyg     &  SRb & 118  & $610^1$ & 3200 & 2825\\
\hline
\end{tabular}}
\medskip
$^1$ Hipparcos distance \citep{Knapp03}. \\
$^2$ From period-luminosity relation \citep{Knapp03}. \\
$^3$ From adopting $L_{\star}$~= 4000~$L_{\odot}$.
\end{table}