\begin{table}%t1
%\centering
\par
\caption{\label{tab:observations}Log of the observations.}
\begin{tabular}{lccccc}
\hline
\hline
$\alpha$    & $\delta$  &  Date      &  UT      & $t_{\rm exp}$ & Filter \\
(\degr)     &  (\degr)  & (d/m/y)    & (h:m:s)  &  (s)          &        \\ 
\hline
83.82747      & $-$31.2880   & 25/01/2003 & 02:45:19 & 3600  & HR14   \\
83.82750      & $-$31.2880   & 26/01/2003 & 02:14:47 & 3600  & HR15   \\
83.82762      & $-$31.2881   & 28/01/2003 & 02:32:05 & 3600  & HR15	 \\
83.82766      & $-$31.2881   & 29/01/2003 & 02:10:41 & 3600  & HR15	 \\
83.82763      & $-$31.2880   & 03/02/2003 & 02:35:43 & 3600  & HR15   \\
83.82731      & $-$31.2880   & 15/10/2005 & 07:34:36 & 2820  & HR15   \\
83.82730      & $-$31.2881   & 16/10/2005 & 07:21:02 & 2820  & HR15	 \\
83.82730      & $-$31.2881   & 17/10/2005 & 07:23:30 & 2820  & HR15	 \\
83.82739      & $-$31.2880   & 18/10/2005 & 06:48:58 & 2820  & HR15   \\
83.82729      & $-$31.2880   & 19/10/2005 & 07:23:02 & 2820  & HR15   \\
83.82725      & $-$31.2881   & 20/10/2005 & 07:17:21 & 2820  & HR15	 \\
83.82730      & $-$31.2881   & 21/10/2005 & 06:43:18 & 2820  & HR15	 \\
83.82731      & $-$31.2880   & 04/11/2005 & 06:25:09 & 2820  & HR15   \\
83.82747      & $-$31.2880   & 05/11/2005 & 05:05:07 & 2820  & HR15   \\
83.82718      & $-$31.2881   & 18/01/2006 & 03:28:53 & 2820  & HR15	 \\
83.82707      & $-$31.2881   & 20/01/2006 & 04:05:22 & 2054  & HR15	 \\
\hline
\end{tabular}
\end{table}