\begin{table}%t1 %\centering \par \caption{\label{cap5:tablelines}Atomic data for the \ion{Fe}{i} 630~nm lines.} \par \begin{tabular}{@{}c c c c c c c@{}} \hline\hline\noalign{\smallskip} $\lambda_{0}$ (nm) & $\chi$ (eV) & $\log gf$ & {\scshape Transition }& $\alpha/a^2_0$ & $\sigma$ & $g_{\rm eff}$\\ \hline \hline 630.1501 & 3.654 & $-$0.75 & $5P_2{-}5D_2$ & 0.243 & 840.5 & 1.67 \\ 630.2494 & 3.686 & $-$1.236 & $5P_1{-}5D_0$ & 0.240 & 856.8 & 2.5 \\ \hline \end{tabular} \tablefoot{Shown are the central wavelength of the transition, $\lambda_{0}$, the excitation potential of the lower atomic level, $\chi$, the multiplicity of the lower level times the oscillator strength, $\log gf$, the collisional broadening parameters, $\alpha$ and $\sigma$ (in units of Bohr's radius $a_0$), and the effective Land\'e factor of the line, $g_{\rm eff}$. The $\log gf$ values have been derived from a fit to the solar spectrum using a two-component model of the quiet Sun \citep{borrero2002}.} \end{table}