\begin{table}%t2
 %\centering
\par
\caption{Estimated total errors for all emission lines fluxes, and 
for available bright lines, namely H$\beta$, H$\alpha$, 5007~{\AA}, 6583~{\AA}, and 6678~{\AA}.\label{errors} } 
\begin{tabular}{lcc} 
\hline \hline 
Object       & Total error& Total error     \\ 
name         & (all lines)& (bright lines) \\ 
\hline
\object {Bobn 1}  & 2.3\%      & 1.1\%  \\ 
\object {DdDm 1}  & 3.8\%      & $<$1\% \\ 
\object {IC 5117} & 2.6\%      & 1.1\%  \\ 
\object {M 1--5}   & 2.3\%      & $<$1\% \\ 
\object {M~1--71}  & 3.1\%      & 2.8\%  \\ 
\object {NGC~6833}& 5.2\%      & $<$1\%  \\ 
\hline 
\end{tabular} 
\end{table}