\begin{table}%t6
\caption{\label{other_lines}Summary of other lines detected in the \object{VY CMa} spectrum.}
%\centering
 \small \begin{tabular}{lcc}
\hline \hline \noalign{\smallskip}
Transition       & Wavelength & Comment \\
                 &  ($\mu$m)  & \\
\hline
OH $^{2}\Pi_{1/2}$ $J = 3/2$--1/2 & 163.1/163.4 & blend with CO \\
OH $^{2}\Pi_{3/2}$ $J =5/2$--3/2 & 119.2/119.4 & well separated \\
NH$_3$ $K = 2$, $J =3^{+}$--2$^{-}$ & 165.60 & well separated \\
NH$_3$ $K = 2$, $J =3 ^{-}$--2$^{+}$ & 169.97 & blend with H$_2$O \\
H$_3$O$^+$ $K = 1$, $J = 2$--2 & 183.68 & possible identification \\
C$^+$ $^{2}$P$_{3/2}$--$^{2}$P$_{1/2}$ & 157.74 & blend with H$_2$O \\
U-line & 52.5 & \\ 
U-line & 86.6 & \\
\hline
\end{tabular}
\end{table}