\begin{table}%t3
\caption{Observed and calculated photometric parameters of \hd.}
%\centerline
{
\begin{tabular}{c|c|ccccc}
\hline\hline
                &                                                    & t7250g4.3   & t7250g4.3     & t7250g4.1	   & t7250g4.1				   & t7250g4.1\\
Color           &                                                    & homogeneous & stratified    & stratified    & stratified			           & stratified\\
index           &      \textbf{Observations}                         &		  & REE  unscaled & REE  unscaled & $\Delta$\loggf$_{\rm PrII,NdII}=-1.5$ & $\Delta$\loggf$_{\rm PrII,NdII}=-1$\\
                &       	                                     &		  &		  &		  &					  & $\Delta$\loggf$_{\rm PrIII,NdIII}=+0.5$\\
                &       	                                     & (Model 1)   & (Model 2)	  & (Model 3)	  & (Model 4)				  & (Model 5)\\
\hline
$b-y$         &${\bf 0.186}~($0.003$)$;~~~${\bf 0.191}^\star$&$0.195$      &$0.188$        &$0.183$        &$0.180$                                &$0.180$\\
$m_{\rm 1}$     &${\bf 0.202}~($0.006$)$;~~~${\bf 0.211}^\star$&$0.197$	   &$0.214$	   &$0.213$	   &$0.205$				   &$0.207$\\
$c_{\rm 1}$     &${\bf 0.653}~($0.011$)$;~~~${\bf 0.626}^\star$&$0.610$	   &$0.575$	   &$0.638$	   &$0.663$				   &$0.656$\\
${\rm H}\beta$        &${\bf 2.745}~($0.003$)$;~~~${\bf 2.760}^\star$&$2.802$	   &$2.804$	   &$2.808$	   &$2.810$				   &$2.809$\\
$a$             &${\bf 0.609}~($0.0005$)$      		     &$0.621$	   &$0.621$	   &$0.621$	   &$0.617$				   &$0.619$\\
$B-V$         &${\bf 0.320}$       			     &$0.308$	   &$0.308$	   &$0.297$	   &$0.288$				   &$0.290$\\
$U-B$         &${\bf 1.381}$       			     &$1.333$	   &$1.311$	   &$1.370$	   &$1.379$				   &$1.376$\\
$V-B$         &${\bf 0.572}$       			     &$0.596$	   &$0.595$	   &$0.610$	   &$0.621$				   &$0.619$\\
$B_{1}-B$  &${\bf 0.978}$       			     &$0.984$	   &$0.990$	   &$0.985$	   &$0.982$				   &$0.983$\\
$B_{2}-B$  &${\bf 1.393}$       			     &$1.413$	   &$1.407$	   &$1.413$	   &$1.417$				   &$1.416$\\
$V_{1}-B$  &${\bf 1.286}$       			     &$1.319$	   &$1.319$	   &$1.333$	   &$1.343$				   &$1.341$\\
$G-B$         &${\bf 1.688}$       			     &$1.727$	   &$1.726$	   &$1.741$	   &$1.753$				   &$1.751$\\
\hline
\end{tabular}}
\label{Tcolors}
\par
\smallskip
$^\star$ \citet{martinez}\\
The values in brackets give the error bars of observations.
\end{table}