\begin{table}%t1
%\centering
\par
\caption{The sample with spectral types, variable types, periods ($P$), luminosities ($L_{\star}$), and distances~($D$).}\label{sample}

\begin{tabular}{p{0.3\linewidth}ccccccc}
\hline\hline
\noalign{\smallskip}
\multicolumn{1}{l}{{{\rm Source}}} &\multicolumn{1}{c}{{{\rm Spec.}}} &
\multicolumn{1}{c}{{{\rm Var.}}} &&\multicolumn{1}{c}{{ ${P}$}} &
\multicolumn{1}{c}{$L_{\star}$} &&  \multicolumn{1}{c}{$D$}\\ 
&\multicolumn{1}{c}{{\rm Type}} &\multicolumn{1}{c}{{\rm Type}} &&\multicolumn{1}{c}{[{\rm days}]} &\multicolumn{1}{c}{$[ {L}_\odot]$} &&
\multicolumn{1}{c}{[{\rm pc}]} \\
\hline
\object{LP And} & {\rm C} & {\rm Mira} &&  620 & \phantom{0}8200 && \phantom{1}620 \\
\object{CW Leo} & {\rm C} & {\rm Mira} && 630 & \phantom{0}8300 && \phantom{1}120 \\
\object{RW LMi} & {\rm C} & {\rm SRa} && 640 & \phantom{0}8500 && \phantom{1}390 \\
\object{V384 Per} &  {\rm C} & {\rm Mira} && 535 & \phantom{0}7000 && \phantom{1}590 \\
\object{AFGL 3068} & {\rm C} & {\rm Mira} && 696 & \phantom{0}9300 && 1090 \\	
 & & & && && \\
\object{TX Cam} & {\rm M} & {\rm Mira} && 557 & 11900 && \phantom{1}440 \\
\object{GX Mon} & {\rm M} & {\rm Mira} && 527 & 11100 && \phantom{1}630 \\
\object{WX Psc} & {\rm M} & {\rm Mira} && 660 & 14600 && \phantom{1}720 \\	
\object{IK Tau}	& {\rm M} & {\rm Mira} && 500 & 10400 && \phantom{1}300 \\
\object{IRC--10529}	& {\rm M} & {\rm Mira} && 680 & 15100 && \phantom{1}890 \\
\hline
\end{tabular}
\end{table}