\begin{table}%t3 
   \caption{Extinction for \bd. The predicted \hbeta~fluxes have
      been derived using  the theoretical fluxes from
      \citet{hummer} (see text for explanation).}
    \label{hbeta_bd}
 %\centerline
{   \begin{tabular}{l c c c c c}
      \hline
      \hline
      \makebox{\rule[0cm]{0cm}{0.33 cm} Ident.} & Transition &
      $\lambda$ &  Flux$^\sharp$ & Predict.$^\sharp$  & \c \\
      & & ($\mu$m) & &  \hbeta &    \\
      \hline
      Br$\alpha$&  5 $\rightarrow$ 4 & 4.052 &  25.1 & 304 & 0.51\\
      Br$\beta$ &  6 $\rightarrow$ 4 & 2.626 &  13.3 & 283 & 0.48\\
      Pf$\alpha$&  6 $\rightarrow$ 5 & 7.459 &  7.69 & 292 & 0.50\\
      Pf$\gamma$&  8 $\rightarrow$ 5 & 3.740 &  3.33 & 303 & 0.51\\
      \ion{H}{i}& 13 $\rightarrow$ 5 & 3.039 &  1.71 & 311 & 0.52\\
      \hline
    \end{tabular}}
    $^\sharp$ Units in \units. 
  \end{table}