\begin{table}%t1
\caption{\label{hvezpar}Radius $R_*$, mass $M$, and the effective temperature~$T_{\rm eff}$ of studied model stars.}
%%\centering

\par
\begin{tabular}{ccccc}
\hline \hline \noalign{\smallskip}
\multicolumn{2}{c}{Star (model)} & $R_*$ & $M$ & $T_{\rm eff}$\\
& & $[R_\odot]$ & $[M_\odot$] & [K]\\
\hline
\multicolumn{5}{c}{First stars}\\
\multicolumn{2}{c}{M500-1} & 11.1 &  50 & 50~000 \\
\multicolumn{2}{c}{M500-2} & 33.7 &  50 & 29~900 \\
\multicolumn{2}{c}{M500-3} & 72.0 &  50 & 20~600 \\
\multicolumn{2}{c}{M500-4} & 303  &  50 & 10~100 \\
\hline
\multicolumn{5}{c}{O stars}\\
$\xi$ Per      &  HD $24912$ & $14.0$ & $36$ & $35~000$ \\
$\iota$ Ori    &  HD $37043$ & $21.6$ & $41$ & $31~400$ \\
15 Mon         &  HD $47839$ &  $9.9$ & $32$ & $37~500$ \\
               &  HD $54662$ & $11.9$ & $38$ & $38~600$ \\
               &  HD $93204$ & $11.9$ & $41$ & $40~000$ \\
$\zeta$ Oph    & HD $149757$ &  $8.9$ & $21$ & $32~000$ \\
68 Cyg         & HD $203064$ & $15.7$ & $38$ & $34~500$ \\
19 Cep         & HD $209975$ & $22.9$ & $47$ & $32~000$ \\
\hline
\multicolumn{5}{c}{Central stars of planetary nebulae}\\
\multicolumn{2}{c}{NGC 2392}  & 1.5 &0.41 &40~000 \\
\multicolumn{2}{c}{NGC 3242}  & 0.3 &0.53 &75~000 \\
\multicolumn{2}{c}{IC 4637}   & 0.8 &0.87 &55~000 \\
\multicolumn{2}{c}{IC 4593}   & 2.2 &1.11 &40~000 \\
\multicolumn{2}{c}{He 2-108}  & 2.7 &1.33 &39~000 \\
\multicolumn{2}{c}{IC 418}    & 2.7 &1.33 &39~000 \\
\multicolumn{2}{c}{Tc 1}      & 3.0 &1.37 &35~000 \\
\multicolumn{2}{c}{NGC 6826}  & 2.2 &1.40 &44~000 \\
\hline
\end{tabular}
\end{table}