\begin{table}%T1
\par
\caption{\label{Tab1}Journal of spectral observations of HS~0837+4717.}
%%\centering
\par
\begin{tabular}{lrrrcccc} 
\hline \hline
\MC{1}{c}{ Telescope}     &
\MC{1}{c}{ Date }       &
\MC{1}{c}{ Exposure }   &
\MC{1}{c}{ Wavelength } &
\MC{1}{c}{ Dispersion } &
\MC{1}{c}{ Seeing }     &
\MC{1}{c}{ Airmass }     &
\MC{1}{c}{ PA }          \\
\MC{1}{c}{ }       &
\MC{1}{c}{ }       &
\MC{1}{c}{ time [s] }    &
\MC{1}{c}{ Range [\AA] } &
\MC{1}{c}{ [\AA/pixel] } &
\MC{1}{c}{ [arcsec] }    &
\MC{1}{c}{          }    &
\MC{1}{c}{ [degree] }     \\
\MC{1}{c}{ (1) } &
\MC{1}{c}{ (2) } &
\MC{1}{c}{ (3) } &
\MC{1}{c}{ (4) } &
\MC{1}{c}{ (5) } &
\MC{1}{c}{ (6) } &
\MC{1}{c}{ (7) } &
\MC{1}{c}{ (8) }  \\
\hline
MMT & 01.05.1997  &$2 \times 1200$&~$ 3600{-}8300$  & 1.9 &  1.6 & 1.13 & ~~~16 \\
BTA & 19.02.2002  &$2 \times 1800$&~$ 3700{-}6100$  & 2.4 &  2.2 & 1.27 & ~~~44 \\
BTA & 19.02.2002  &$2 \times 1800$&~$ 6000{-}7200$  & 1.2 &  1.3 & 1.15 & 44~130 \\
\hline 
\end{tabular}
\end{table}