\begin{table}%t5
\caption{\label{Lyman continuum}Comparison between stellar and nebular properties.}
%\centering
\small
\begin{tabular}{lllllllllcl}
\hline\hline\noalign{\smallskip}
\ion{H}{ii} region & $d$~(kpc) & \multicolumn{3}{c}{$C$(H$\beta$)} & & \multicolumn{3}{c}{$\log N_{\rm c}$~(photons s$^{-1}$)} &  $F(\lambda 4959)$/H$\beta$ & Spectral types   \\
\cline{3-5} \cline{7-9}
\noalign{\smallskip}
                   & & Stars & H$\gamma$/H$\beta$ & 2.7~GHz & & Stars & H$\beta$ & 2.7~GHz \\
\hline                                             
\noalign{\smallskip}                               
%                                                  
 \object{Bran~186}    &   3.05   &    1.14   & 1.57 &      & &  48.02   &   47.2: &       &   0.16 & B0 V \\
 \object{NGC~3503}    &   2.85   &    0.67   & 0.58 & 2.95 & &  48.03   &   46.56 & 48.83 &   0.04 & B0 V, 3 $\times$ B2 V \\
 \object{RCW~55}      &   4.36   &    1.07   & 0.74 &      & &  48.90   &   46.82 &       &   0.17 & B1 V  \\
 \object{RCW~87}      &   1.23   &    2.70   & 2.89 & 3.34 & &  45.16   &   47.44 & 48.08 &   0.31 & B4 V \\
 \object{RCW~99}      &   3.55   &    2.97   & 1.56 & 2.70 & &  49.36   &   49.25 & 48.98 &   0.28 & O7 III, B2.5V \\
 \object{Gum 64a}      &   1.75   &    2.13   &      &      & &  47.77   &   47.81 &       &        & B0.5 V \\ 
\hline
\end{tabular}
\end{table}