\begin{table}%t3
\caption{Atomic data for the isotopic components of \ion{Ca}{ii}
$\lambda$8498~\AA. }\label{iso8498}
%\centerline
{\begin{tabular}{ccc}
\hline \hline \noalign{\smallskip}
 \ $\lambda$ (\AA) & isotope  & $\log gf\varepsilon$ \\
\hline
  8498.023 & 40 &  $-$1.43   \\
  8498.079 & 42 &  $-$3.60   \\
  8498.106 & 43 &  $-$4.29   \\
  8498.131 & 44 &  $-$3.10   \\
  8498.179 & 46 &  $-$5.81   \\
  8498.223 & 48 &  $-$4.14   \\
\hline
\end{tabular}}
\smallskip
The fractional abundance of Ca isotopes, $\varepsilon$, corresponds to the composition of the terrestrial matter.
\end{table}