\begin{table}%t4
\caption{\label{identi}Highest peaks.}
%\centerline
 {\small \begin{tabular}{cccc}
\hline\hline
Order& $\Delta\nu$ & $\nu_1$ & $\nu_2$ \\
&\multicolumn{3}{c}{\dotfill\ ($\mu$Hz) \dotfill}\\
\hline
 13 &   92.1 &  1393.7 &           \\
 14 &   92.6 &  1485.0 &           \\
 15 &   92.9 &  1585.7 &  \textit{1623.3}   \\
 16 &  100.4 &  1680.4 &           \\
 17 &  103.2 &         &  1839.2    \\
 18 &  100.2 &  \textit{1881.1}           \\
 19 &   94.6 &         &  2027.6   \\
 20 &   94.1 &         &           \\
 21 &   94.1 &         &  2217.3   \\
 22 &   94.5 &  2263.1 &           \\
 23 &   96.3 &         &  2397.3   \\
 24 &   99.0 &  2463.1 &           \\
 25 &  102.1 &  2550.0 &  \textit{2604.2} \\
 26 &  102.8 &         &  \textit{2706.3}  \\
 27 &  103.7 &         &           \\
 28 &  101.9 &         &           \\
\hline
\end{tabular}}
\medskip
Variation of the large separation along the frequency pattern, and largest peaks corresponding to the 2~ridges; the  peaks selected with the H0 test at a confidence level greater than 95\% appear in italic.
\end{table}