\begin{table}%t1
\caption{Spectral classification of known stars.}\label{tab1}
%\centering
\small
\begin{tabular}{lcc}
\hline
\hline
Star &  Spectral type & Spectral type\\
        &  (literature) &  (found) \\
\hline
   Gamma Ori.  &  B2III  & B2.5V \\
   Eta Hyade  &  B3V  & B2V \\
   HD214680   &  O9V  & O9V \\ 
   Upsilon Ori. &  B0V  & B0V \\
   HD215835   &  O6V  & O5V\\
   HD225160   &  O8Ib  & O7.5Ia \\  
\hline
\end{tabular}
\end{table}