\begin{table}%t1
\caption{\label{tab:obs} Journal of the observations.}
\scriptsize
%\centerline
 {
\begin{tabular}{cccccc}  
\hline\hline
Field             & Date       &  Filter  & $T_{\rm exp}$ & Seeing & Air Mass \\
(RA, Dec)       & (d/m/y)    &          & (min)         & ($\arcsec$)    &          \\
%\noalign{\medskip}
\hline
%\noalign{\medskip}
Serpens\_1             & 13/05/08 & $R$     & $120\times4$ & 1.5 & 1.50 \\  
(18:28:43,+00:24:46)   & 17/05/08 & $R$     & $ 10\times1$ & 2.0 & 1.14 \\  
                       & 15/05/08 & $Z$     & $120\times9$ & 1.5 & 1.17 \\  
                       & 17/05/08 & $Z$     & $ 10\times1$ & 2.1 & 1.14 \\  
\hline
Serpens\_2             & 14/05/08 & $R$	  & $120\times9$ & 1.6 & 1.15 \\
(18:28:57,+01:02:54)   & 17/05/08 & $R$	  & $ 10\times1$ & 2.0 & 1.15 \\
                       & 15/05/08 & $Z$     & $120\times4$ & 1.5 & 1.16 \\  
                       & 17/05/08 & $Z$     &  $10\times1$ & 1.5 & 1.15 \\  
\hline
Serpens\_3             & 14/05/08 & $R$	  & $120\times9$ & 1.6 & 1.15 \\
(18:28:36,--00:09:51)   & 17/05/08 & $R$	  & $ 10\times1$ & 1.6 & 1.15 \\
                       & 17/05/08 & $Z$     & $ 10\times1$ & 2.3 & 1.15 \\  
\hline
L~104\tablefootmark{\dagger}           & 13/05/08 & $R$     & $  2\times1$ & 1.2 & 1.22 \\
(12:41:68, --00:34:11)   & 13/05/08 & $Z$     & $  5\times1$ & 1.3 & 1.19 \\
\hline
\end{tabular}}
\medskip
\tablefoot{\tablefoottext{\dagger}{Standard star field.}}
\end{table}