\begin{table}%t2
%\centering
\par
\caption{\label{tab:cclines}Division lines between stars and galaxies for color-color\protect diagrams.}
\begin{tabular}{llrr}
\hline \hline \noalign{\smallskip}
Color 1 & Color 2 & $a$ & $b$ \\
\hline 
$S_{65}/S_{90}$ & $S_{65}/S_{140}$ & $-0.17$ & $0.33$ \\
$S_{65}/S_{90}$ & $S_{65}/S_{160}$ & $-4.08$ & $1.18$ \\
$S_{65}/S_{90}$ & $S_{90}/S_{140}$ & $-1.24$ & $0.32$ \\
$S_{65}/S_{90}$ & $S_{90}/S_{160}$ & $-4.08$ & $0.97$ \\
$S_{65}/S_{90}$ & $S_{140}/S_{160}$ & $-49.09$ & $10.01$ \\
$S_{65}/S_{140}$ & $S_{65}/S_{160}$ & $-2.95$ & $1.39$ \\
$S_{65}/S_{140}$ & $S_{90}/S_{140}$ & $-2.18$ & $1.20$ \\
$S_{65}/S_{140}$ & $S_{90}/S_{160}$ & $-2.46$ & $1.00$ \\
$S_{65}/S_{140}$ & $S_{140}/S_{160}$ & $-1.81$ & $0.60$ \\
$S_{65}/S_{160}$ & $S_{90}/S_{140}$ & $-0.46$ & $0.40$ \\
$S_{65}/S_{160}$ & $S_{90}/S_{160}$ & $2.36$ & $-1.04$ \\
$S_{65}/S_{160}$ & $S_{140}/S_{160}$ & $ 1.31$ & $-0.49$ \\
$S_{90}/S_{140}$ & $S_{90}/S_{160}$ & $-3.94$ & $1.38$ \\
$S_{90}/S_{140}$ & $S_{140}/S_{160}$ & $-9.20$ & $2.33$ \\
$S_{90}/S_{160}$ & $S_{140}/S_{160}$ & $1.19$ & $-0.30$ \\
\hline
\end{tabular}
%\vspace*{5mm}
\end{table}