\begin{table}%t1
\caption{\label{tab:literature_param}Physical parameters of HD~171488 from the literature and present work.}
\small%\centering
\par
 \begin{tabular}{lll}
  \hline\hline
  \noalign{\smallskip}
  Parameter                  & Value & Reference\\ 
  \hline 
  Spectral Type                   & G0V   & \cite{Harlan69}\\
  $ ''$                              & G2V    & \cite{Cuti02}\\
  $ '' $                             & G2V    & present work\\ 
  $v\sin i$ (km~s$^{-1}$)        & 38  	   & \cite{Fekel97}\\
  $'' $                              & $39.0 \pm 0.5$  & \cite{Strass03}\\
 $ '' $                              & $37.5 \pm 0.5$  & \cite{Marsden06}\\
  $''   $                            & $38.0 \pm 0.5$  & \cite{Jeffers08}\\
  $'' $                              & $37.1 \pm 1.0$  & present work \\
  $P_{\rm rot}$ (days)            & $1.3371\pm0.0002$  & \cite{Strass03}\\  
  $'' $                              & $1.313\pm0.004$  & \cite{Marsden06}\\
  $'' $                              & 1.33697          & \cite{Jarvi08}\\ 
  $W_{\textrm{Li~{\sc i}}}$ (m\AA)   & 220                & \cite{Cuti02}\\
  $''$                             &$213 \pm 7$	     & \cite{Strass03}\\
  $''$                             &$215 \pm 7$	     & present work \\ 
  $T_{\rm eff}$ (K)               & $5830\pm50$  & \cite{Strass03}\\ 
 $ ''  $                             & $5808$   & \cite{Jeffers08}\\
 $ ''  $                             & $5750\pm130$ & present work (R\textsc{otfit}) \\
 $ '' $                              & $5850\pm100$ & present work (M\textsc{oog}) \\
  $\log g$                        & 4.50  & \cite{Strass03}\\
  $''$                               & $4.30\pm0.15$ & present work\\  
  ${\rm [Fe/H]}$			  & $-0.5$  & \cite{Strass03}\\
  $''$				  &  +0.$01\pm0$.09  & present work (R\textsc{otfit}) \\
  $''$				  &  +0.$15\pm0$.07  & present work (M\textsc{oog}) \\ 
  \hline
\end{tabular}
\end{table}