\begin{table}%t2
\caption{Characteristic scales of the VL samples: $r_{{\rm sep}}$ is the average separation distance
between nearest neighbor galaxies (in~2dFGRS and Poisson distribution
within the same volume and for the same number of galaxies), $r_{\rm s}^{\rm m}$ is the maximum sphere completely contained in the sample. All distances are in~Mpc ($H_0=100$~km~s$^{-1}$~Mpc$^{-1}$).} 
\label{tbl_VLSamplesScales}
%\centering
\par
\begin{tabular}{lccc}
  \hline  \hline
  VL sample & $r_{{\rm sep}}$, 2dFGRS & $r_{{\rm sep}}$, Poisson & $r_{\rm s}^{\rm m}$ \\
  \hline
    NGP250 & 1.3 & 2.0 & 12.4 \\
    NGP400 & 1.7 & 2.6 & 19.9 \\
    NGP550 & 2.7 & 3.9 & 27.4 \\
    SGP250 & 1.5 & 2.4 & 18.2 \\
    SGP400 & 1.9 & 3.0 & 29.1 \\
    SGP550 & 2.8 & 4.2 & 40.0 \\
  \hline
\end{tabular}
\end{table}