\begin{table}%tb.2
%\centering
\par
\caption{\label{comp}Accurate Hvar {\it all-sky}  mean \ubv\ values for all comparison stars used. These were added to the magnitude differences var.$-$comp. and check$-$comp. for data from all stations. For comparison, also the \ubv\ magnitudes of 126~Tau from \ubv\ all-sky photometry by \citet{john66} and from
8C all-sky photometry by \citet{john67} transformed to \ubv\ by us.}
\small \begin{tabular}{crcrcccrr}
\hline\hline 
Station&Star& HD & No. of& $V$  &  $B$ &  $U$ &$(B-V)$& $(U-B)$ \\
       &    &    &   obs.&(mag.)&(mag.)&(mag.)&(mag.) &  (mag.) \\
 \hline 
01&HR 1860&36589& 741& 6.211 \p 0.010& 6.180 \p 0.011&5.788 \p 0.013&--0.031&--0.392\\
01&126 Tau & 37711 & 635& 4.853 \p 0.011& 4.728 \p 0.012 & 4.086 \p 0.014 & --0.125 & --0.642\\
01&121 Tau & 36819 & 149 & 5.385 \p 0.013 & 5.305 \p 0.013 & 4.677 \p 0.016 & --0.080 & --0.628\\
%\noalign{\smallskip}\hline\noalign{\smallskip}
23 & 126 Tau & 37711 &   3 & 4.862 \p 0.028& 4.743 \p 0.033 & 4.108 \p 0.045 & --0.119 &--0.635\\
30&126 Tau&37711&   2& 4.857 \p 0.003& 4.716 \p 0.004 & 4.052 \p 0.006 &--0.141 &--0.664\\
 \hline 
\end{tabular}\vspace*{4mm}
\end{table}