\begin{table}%t4
%\centering
 \caption{Orbital and physical characteristics of 2867
Steins.}
\label{tab4}
\begin{tabular}{ll}
\hline
\hline
Semimajor axis (AU)             & 2.364 \\
Eccentricity                    & 0.146 \\
Inclination (deg)               & 9.944 \\
Taxonomic type                  & E \\
Synodical rotation period (h) & $6.06 \pm 0.05$ \\
Absolute magnitude  (with            & 12.561 \\
slope par. assumed = 0.15)  &\\
\hline
\end{tabular}
\end{table}