\begin{table}%t4
\caption{\label{tab4}Log of the spectroscopic observations.}
\small%\centering
\par
\begin{tabular}{cccccc}
\hline\hline
Run& Telescope &Instrumentation &Dates & Dispersion & Spectral Range\\
& & & & (\AA/pix)& (\AA)\\ 
\hline
\#1 & 4.2 m WHT & UES &16--17 August 1996 &0.065& 5300-9400\\
\#2 & 4.2 m WHT & UES &10--12 June 1997&0.065&4700-10300\\
\#3 & 4.2 m WHT & UES &18--20 August 1997 &0.065&4700-10300\\
\#4 & 3.6 m ESO & CASPEC &21--24 February 1997 &0.085& 6000-8200\\
\hline
\end{tabular}
\end{table}