\begin{table}%t5
\caption{\label{t:idflags}Meaning of flags I classifying our identifications.}
%\centering
\par
\begin{tabular}{ll}
\hline\hline\noalign{\smallskip}
1 & nearest star, secure identification \\
2 & not nearest star, secure identification \\
3 & probable identification, not secure \\
  & because too far or too faint \\
4 & possible identification \\
  & other identification(s) also possible \\
5 & not identified \\
6 & double entry \\
\hline
\end{tabular}
\end{table}