\begin{table}%t1
   %\centering
\par
      \caption{Log of observations.\label{tab1} }
         \begin{tabular}{c c c }
            \hline\hline
            \noalign{\smallskip}
Band &   Night &  Julian date \\
            \noalign{\smallskip}
            \hline
            \noalign{\smallskip}
$B$   &    2000 Oct. 31 &  2~451~848.645\\
$V$   &    &  2~451~848.665\\
$R$   &    &  2~451~848.675\\
$I$   &    &  2~451~848.685\\
& &\\
$B$ &      2000 Nov. 2 &  2~451~850.605\\
$V$ &       & 2~451~850.595\\
$R$ &       & 2~451~850.586\\
$I$ &       & 2~451~850.518\\
& &\\
$B$ &      2000 Nov. 6 & 2~451~854.550\\
$V$ &        & 2~451~854.570\\
$R$ &        & 2~451~854.582\\
$I$  &       & 2~451~854.595\\
& &\\
$B$  &     2000 Nov. 8 & 2~451~856.541\\
$V$  &    & 2~451~856.573\\
$R$  &    & 2~451~856.590\\
$I$  &    & 2~451~856.600\\
& &\\
$B$ &      2001 Oct. 25 & 2~452~207.514\\
$V$ &      &  2~452~207.539\\
& &\\
$B$ &      2001 Nov. 8 &  2~452~221.590\\
$V$ &      & 2~452~221.573\\
$R$&      &  2~452~221.555\\
            \noalign{\smallskip}
            \hline
         \end{tabular}
   \end{table}