\begin{table}%t4
%\centering
\par
\caption{Stellar parameters as a function of spectral types for luminosity 
class V stars obtained with the observational \teff\ scales.
\label{tab_V_obs}}
\begin{tabular}{lllllllllllll}
\hline \hline 
ST & \teff\ & $\log g_{\rm spec}$ & \mv\ & BC & \lL & $R$ & $M_{\rm spec}$ & \qo\ & \qi\ & \Qo\ & \Qi\ & \\
 & [K] & [cm s$^{-2}$] &  &  &  & [\rsun] & [\msun] & [cm$^{-2}$ s$^{-1}$] & [cm$^{-2}$ s$^{-1}$] & [s$^{-1}$] & [s$^{-1}$] &\\ 
\hline
3    & 44~852 & 3.92 & --5.79 & --4.05 & 5.84 & 13.80 & 57.95 & 24.57 & 23.98 & 49.64 & 49.04 & \\
4    & 42~857 & 3.92 & --5.50 & --3.91 & 5.67 & 12.42 & 46.94 & 24.47 & 23.82 & 49.44 & 48.79 & \\
5    & 40~862 & 3.92 & --5.21 & --3.77 & 5.49 & 11.20 & 38.08 & 24.34 & 23.66 & 49.22 & 48.54 & \\
5.5  & 39~865 & 3.92 & --5.07 & --3.70 & 5.41 & 10.64 & 34.39 & 24.27 & 23.57 & 49.10 & 48.41 & \\
6    & 38~867 & 3.92 & --4.92 & --3.62 & 5.32 & 10.11 & 30.98 & 24.20 & 23.46 & 48.99 & 48.26 & \\
6.5  & 37~870 & 3.92 & --4.77 & --3.55 & 5.23 & 9.61  & 28.00 & 24.13 & 23.34 & 48.88 & 48.09 & \\
7    & 36~872 & 3.92 & --4.63 & --3.47 & 5.14 & 9.15  & 25.29 & 24.04 & 23.17 & 48.75 & 47.88 & \\
7.5  & 35~874 & 3.92 & --4.48 & --3.39 & 5.05 & 8.70  & 22.90 & 23.94 & 22.98 & 48.61 & 47.64 & \\
8    & 34~877 & 3.92 & --4.34 & --3.30 & 4.96 & 8.29  & 20.76 & 23.82 & 22.68 & 48.44 & 47.30 & \\
8.5  & 33~879 & 3.92 & --4.19 & --3.22 & 4.86 & 7.90  & 18.80 & 23.69 & 22.23 & 48.27 & 46.81 & \\
9    & 32~882 & 3.92 & --4.05 & --3.13 & 4.77 & 7.53  & 17.08 & 23.52 & 21.69 & 48.06 & 46.22 & \\
9.5  & 31~884 & 3.92 & --3.90 & --3.04 & 4.68 & 7.18  & 15.55 & 23.39 & 21.31 & 47.88 & 45.80 & \\
\hline 
\end{tabular}
\end{table}