\begin{table}%t2
   \caption{\label{t:magdiff}Magnitude difference for program stars.}
     \small%\centerline
{
             \begin{tabular}{lcccccl}
         \hline \hline
                 Object      & $\Delta V$ & $\Delta V$ &  $\Delta V$ &  $\Delta V$ & Ref.  & $\Delta V$   \\
                     & Hipparcos  & Tycho      &  Other      &  Other      & Other &  Adopted     \\
                \hline
    \object{HIP~3290} &  1.038~$\pm$~0.015 & 0.917~$\pm$~0.021  &  1.034~$\pm$~0.002 &                  &  1   & 1.033~$\pm$~0.008 \\   
\object{HIP~10175} &  0.464~$\pm$~0.013 & 0.477~$\pm$~0.034  &  0.47 ~$\pm$~0.01  &                  &  2   & 0.468~$\pm$~0.002 \\ 
\object{HIP~20552} &  0.410~$\pm$~0.007 & 0.390~$\pm$~0.015  &                  &                  &      & 0.406~$\pm$~0.008 \\  
\object{HIP~37923} &  0.106~$\pm$~0.024 & 0.104~$\pm$~0.023  &  0.104~$\pm$~0.009 &   0.10~$\pm$~0.02  &  3, 4 & 0.104~$\pm$~0.001 \\  
\object{HIP~39409} &  0.057~$\pm$~0.013 & 0.077~$\pm$~0.047  &                  &                  &      & 0.058~$\pm$~0.005 \\ 
\object{HIP~44817}  &  0.333~$\pm$~0.006 & 0.273~$\pm$~0.045  &  0.318~$\pm$~0.005 &   0.296~$\pm$~0.009&  1, 3 & 0.320~$\pm$~0.007 \\ 
\object{HIP~49520} &  0.165~$\pm$~0.016 & 0.158~$\pm$~0.033  &  0.151~$\pm$~0.006 &                  &  1   & 0.153~$\pm$~0.003 \\ 
\object{HIP~51266} &  0.240~$\pm$~0.010 & 0.232~$\pm$~0.023  &                  &                  &      & 0.239~$\pm$~0.003 \\ 
\object{HIP~55288} &  0.753~$\pm$~0.016 & 0.777~$\pm$~0.017  &                  &                  &      & 0.764~$\pm$~0.012 \\ 
\object{HIP~56280} &  0.082~$\pm$~0.007 & 0.108~$\pm$~0.006  &  0.090~$\pm$~0.009 &                  &  3   & 0.096~$\pm$~0.008 \\ 
\object{HIP~58298} &  0.121~$\pm$~0.012 & 0.059~$\pm$~0.035  &                  &                  &      & 0.114~$\pm$~0.019 \\ 
\object{HIP~58813} &  0.687~$\pm$~0.049 & 0.692~$\pm$~0.019  &  0.686~$\pm$~0.009 &   0.69~$\pm$~0.02  &  3, 4 & 0.687~$\pm$~0.001 \\ 
\object{HIP~58864} &  0.673~$\pm$~0.018 & 0.644~$\pm$~0.038  &  0.64 ~$\pm$~0.02  &                  &  4   & 0.657~$\pm$~0.011 \\ 
\object{HIP~59743} &  0.273~$\pm$~0.009 & 0.263~$\pm$~0.024  &                  &                  &      & 0.272~$\pm$~0.003 \\ 
\object{HIP~62596} &  0.029~$\pm$~0.018 &--0.006~$\pm$~0.028  &  0.065~$\pm$~0.009 &   0.022~$\pm$~0.009&  1, 3 & 0.040~$\pm$~0.013 \\ 
\object{HIP~64030} &  0.566~$\pm$~0.009 & 0.566~$\pm$~0.018  &                  &                  &      & 0.566~$\pm$~0.000 \\ 
\object{HIP~65176} &  0.801~$\pm$~0.012 & 0.722~$\pm$~0.021  &  0.826~$\pm$~0.008 &                  &  1   & 0.810~$\pm$~0.021 \\ 
\object{HIP~65352} &  0.302~$\pm$~0.007 &                  &  0.290~$\pm$~0.009 &   0.30~$\pm$~0.02  &  3, 5 & 0.298~$\pm$~0.004 \\ 
\object{HIP~69328} &  0.430~$\pm$~0.009 & 0.380~$\pm$~0.025  &  0.430~$\pm$~0.003 &                  &  1   & 0.429~$\pm$~0.004 \\ 
\object{HIP~70269} &  0.017~$\pm$~0.008 &                  &                  &                  &      & 0.017~$\pm$~0.008 \\ 
\object{HIP~70386} &  0.175~$\pm$~0.011 & 0.224~$\pm$~0.016  &  0.238~$\pm$~0.009 &                  &  3   & 0.215~$\pm$~0.020 \\ 
\object{HIP~73674} &  0.016~$\pm$~0.019 & 0.017~$\pm$~0.031  &  0.008~$\pm$~0.009 &                  &  3   & 0.010~$\pm$~0.003 \\ 
\object{HIP~74432} &  0.894~$\pm$~0.020 & 0.833~$\pm$~0.012  &  0.833~$\pm$~0.009 &   0.85~$\pm$~0.02  &  3, 4 & 0.841~$\pm$~0.011 \\ 
\object{HIP~76446} &  1.231~$\pm$~0.019 & 0.892~$\pm$~0.067  &                  &                  &      & 1.206~$\pm$~0.089 \\ 
\object{HIP~76603} &  0.120~$\pm$~0.023 & 0.078~$\pm$~0.013  &  0.090~$\pm$~0.009 &   0.02~$\pm$~0.02  &  3, 4 & 0.082~$\pm$~0.014 \\ 
\object{HIP~78024} &  1.658~$\pm$~0.018 & 1.601~$\pm$~0.028  &                  &                  &      & 1.641~$\pm$~0.026 \\ 
\object{HIP~79818} &  0.611~$\pm$~0.014 & 0.518~$\pm$~0.048  &                  &                  &      & 0.604~$\pm$~0.025 \\ 
\object{HIP~80399} &  0.763~$\pm$~0.009 &                  &                  &                  &      & 0.763~$\pm$~0.009 \\ 
\object{HIP~84405} & --0.011~$\pm$~0.010 &                  & --0.04 ~$\pm$~0.02  &                  &  5   &--0.017~$\pm$~0.012 \\ 
\object{HIP101292} &  0.020~$\pm$~0.009 &                  &                  &                  &      & 0.020~$\pm$~0.009 \\ 
\object{HIP103438} &  0.599~$\pm$~0.012 & 0.435~$\pm$~0.036  &                  &                  &      & 0.583~$\pm$~0.049 \\ 
\object{HIP104687} &  0.048~$\pm$~0.008 &--0.052~$\pm$~0.053  &  0.00 ~$\pm$~0.04  &   0.06~$\pm$~0.04  &  6, 6 & 0.045~$\pm$~0.010 \\ 
\object{HIP114914} &  0.369~$\pm$~0.010 & 0.410~$\pm$~0.034  &  0.391~$\pm$~0.007 &                  &  1   & 0.384~$\pm$~0.008 \\ 
  \noalign{\smallskip}
         \hline
      \end{tabular}}
\smallskip
References: 1: Cuypers \& Seggewiss (\cite{cuypers99});
            2: Nakos et~al.~(\cite{nakos95}); 
            3: Nordstrom et~al.~(\cite{nordstrom04});
            4: Simbad; 
            5: Gliese \& Jahreiss (\cite{gj});
                6: Docobo et~al.~(\cite{docobo00}).
\end{table}