\begin{table}%T1
\caption{\label{table:1}Log of observations of Betelgeuse (for details, see Sect. 2).  }          
\small
  %\centering
\par
\begin{tabular}{c c c c c}     
\hline\hline \noalign{\smallskip}              
Date          &  HJD      &Tot exp.& $B_\ell$ & $\sigma$  \\
              &(2 450 000+)& s      & G        & G         \\
\hline                        
14 March 2010 & 5270.397  &320     &0.49      &0.16       \\
15 March 2010 & 5271.372  &320     &0.89      &0.15       \\
17 March 2010 & 5273.311  &256     &0.74      &0.21       \\
22 March 2010 & 5278.362  &316     &1.07      &0.15       \\
09 April 2010 & 5296.318  &320     &1.58      &0.14       \\
17 April 2010 & 5304.336  &272     &1.61      &0.19       \\
\hline                           
\end{tabular}
\vspace*{4mm}
\end{table}