\begin{table}%t2
\caption{Number of NGC~55 blue massive stars identified in this work, separated by field and spectral type.}
\label{table_num}
\small%\centering
\par
\begin{tabular}{llllll}
\hline
\hline
  Field  & O-type     & B-type        & A-type & WR-LBVc &  Total \\
\hline
A	& 5  & 20 & 13 & 1  &  39  \\
B	& 4  & 7  & 7  & 3  &  21  \\
C	& 4  & 34 & 30 & 3  &  71  \\
D	& 1  & 14 & 18 & 0  &  33  \\
Total	& 14 & 75 & 68 & 7  & 164  \\
\hline
\end{tabular}
\end{table}