\begin{table}%t3
\caption{\label{tab:pleiades}Summary of distance modulus determinations for the Pleiades over the past 30 years.}
%\centerline
 {
\small \begin{tabular}{lrrrr}
\hline\hline
Reference & DM & $\sigma$ & Type & $\Delta$ \\
\hline
\citet{an07} & 5.66 & 0.05 & 1 &  0.03 \\
\citet{soder05}  & 5.63 & 0.02 & 3 & 0.00 \\
\citet{perciv05} & 5.63 & 0.05 & 1 & 0.00 \\
\citet{southw05} & 5.71 & 0.07 & 2 & 0.08 \\
\citet{zwahl04} & 5.61 & 0.05 & 2 & --0.02 \\
\citet{munar04} & 5.61 & 0.03 & 2 & --0.02 \\
\citet{pan04} & 5.65 & 0.03 & 2 & 0.02 \\
\citet{stello01} & 5.61 & 0.03 & 1 & --0.02 \\
\citet{gatew00} & 5.59 & 0.12 & 3 & --0.04 \\
\citet{naray99}  & 5.58 & 0.18 & 4 & --0.05 \\
\citet{pinso98} & 5.63 & 0.03 & 1 & 0.00 \\
\citet{giann95} & 5.61 & 0.26 & 1 & --0.02 \\
\citet{fvl83} & 5.57 & 0.08 & 1 & --0.06 \\
\citet{nicol81} &5.73 & 0.06 & 1 & 0.10 \\
\hline
\end{tabular}}
\medskip
 Column~4 gives a code for the type of determination: (1) photometric; (2)~binary star; (3)~differential parallax; (4)~convergent point; Col.~5 gives the difference from the weighted mean value of~5.63.  
\end{table}