\begin{table}%t1
%\centering
\par
\caption{Observed stars. Columns headings are: Star -- object name, $V - V$ magnitude,
$E(B-V)$ -- reddening, Sp -- spectral and luminosity class.\label{tab1}}
\begin{tabular}{lrrl}
\hline\hline 
Star & $V$  & $E(B-V)$  & Sp \\
\hline
BD+59 2735 & 9.88 & 1.38 & B0Ib   \\
BD+40 4220 & 9.05 & 1.99 & O7e    \\
HD 13256   & 8.68 & 1.38 & B1Ia   \\
HD 34078   & 5.94 & 0.50 & O9.5Ve \\
HD 204827   & 8.0  & 1.08 & B0V    \\
HD 207538   & 7.3  & 0.58 & B0V    \\
BD+59 451   &  9.29 & 0.89 & B1II   \\
BD+59 456   &  9.86 & 0.79 & B0.5V  \\
%BD+60 493   &  8.36 & 0.99 & B0.5Ia \\
BD+60 594   &  9.33 & 0.62 & O9V    \\
HD 15785   &  8.34 & 0.76 & B1Iab  \\
HD 46149   &  7.59 & 0.45 & O8.5V  \\
BD+58 2580   & 10.08 & 1.04 & B0.5V  \\
HD 210839   &  5.00 & 0.55 & O6e    \\
HD 219287   &  8.91 & 1.24 & B0Ia   \\
HD 226868   &  8.91 & 1.03 & B0Ib   \\
HD 228779   &  8.92 & 1.53 & O9.5Ib \\
HD 235825   &  9.29 & 0.51 & O9V    \\
HD 186745   &  7.04 & 0.96 & B8Ia   \\
HD 206267   &  5.78 & 0.49 & O6f    \\
HD 228712   &  8.67 & 1.33 & B0.5Ia \\
\hline
\end{tabular}
\end{table}