\begin{table}%t2
\caption{External galaxy groups gravitationally influencing the LG~\mbox{dynamics}.}\label{tab:ExternalGalaxiesAdopted}
\small%\centerline
{
\begin{tabular}{cccccc}
\hline \hline
Group &    $l$   & $b$ &   $d$ & $M$ & $ V_{r}$ \\
name   & $^{\circ}$ & $^{\circ}$ & Mpc & $10^{12} M_\odot$ & km~s$^{-1}$  \\
        \hline
IC 342    &    138.2   &  10.6   &  3.30 & 12.6  &  171.0 \\
Maffei    &    136.4   &  --0.4   &  3.50 &  6.3  &  152.0 \\
Andromeda &    121.2   & --21.6   &  0.76 &  3.16 & --123.0 \\
Milky Way &      0     &  0      &  0.0  &  2.2  &    0.0 \\
M 81      &    142.1   &  40.9   &  3.7  &  1.6  &  130.0 \\
Cen A     &    309.5   &  19.4   &  2.7  &  4.7  &  371.0 \\
Sculptor  &    105.8   &  85.8   &  3.2  &  6.3  &  229.0 \\
        \hline
        \end{tabular}}
\medskip
The radial velocity is referred to the centre of the~MW. No correction for the motion of the Sun toward  the Local Standard of Rest is applied because it falls below the accuracy
adopted in this study. The uncertainties on the distances and radial
velocities are omitted.
\end{table}