\begin{table}%t1
%\centering
\par
 \caption{Spectroscopic range of each order of the \'echelle spectra with resolution $R=70~000$.}\label{t1}
\begin{tabular}{cc||cc}
\hline\hline
Order &  Spectral Range [\AA]  &  Order  & Spectral Range [\AA]\\ \hline
34 & 6542--6592 & 46 & 4850--4886 \\
35 & 6358--6440 & 48 & 4648--4683 \\
38 & 5854--5898 & 49 & 4553--4587 \\
39 & 5704--5746 & 50 & 4462--4496 \\
41 & 5248--5466 & 51 & 4374--4407 \\
43 & 5172--5228 & 52 & 4290--4323 \\\hline
\end{tabular}
\end{table}