\begin{table}%t1
\caption{\label{tab1}Assumed parameters for V Cygni.}
%\centering
\par
\begin{tabular}{l l}
\hline\hline \noalign{\smallskip}
Distance: 400 pc \\
Stellar luminosity: 8500~$L_{\odot}$ \\
Effective temperature: 2500 K \\
Stellar radius: $3.42 \times 10^{13}$~cm \\
Systemic LSR velocity: $+13.8 \rm ~ km ~s^{-1}$ \\
Terminal outflow velocity: $11.8~\rm  km~ s^{-1}$ \\
\hline
\end{tabular}
\vspace*{-3mm}
\end{table}