\begin{table}%T4
\caption{Line-of-sight properties for the observed post-AGB stars.
}
\small%\centering
\par
\label{tb:extinction}
 \begin{tabular}{llllllllll}\hline\hline
    Name     & $E(B-V)$     & $d$       & Ref.     &$E(B-V)$IS& $d_{\rm max}$&\multicolumn{2}{c}{$E(B-V)$IS} & $E(B-V)$-CS     & DCS / HV  \\
          & observed     & kpc     &          &          & kpc      &scaling   & no scaling& min              &     \\\hline
 01005+7910   & 0.2  $\pm$ 0.1   &   3   &          &  0.11    &  1.7     & 0.11     &       &              &      \\
 02229+6208   & 1.67 $\pm$ 0.09  & $>$2.2 &          &  0.60    &  5       & 0.99     &       & 0.68         & CS2  \\
 04296+3429   & 1.3  $\pm$ 0.1   & 3.5     &          &  0.23    &  3.3     & 0.23     &       & 1.07         & CS1  \\
              &                  & 5.4, 5  & 2, 9     &  0.23    &      &          &       &              &      \\
 05113+1347   & 1.1  $\pm$ 0.2   & 5       & 9        &  0.14    &  2.1     & 0.14     &       & 0.96         & CS1  \\
 05251-1244   & 0.23 $\pm$ 0.09  &     &          &      &  1       & 0.18     &       &              &      \\
 05341+0852   & 1.65 $\pm$ 0.09  & 10      & 9        &  0.16    &  2.4     & 0.16     &       & 1.49         & CS1  \\
 06530-0213   & 1.7  $\pm$ 0.2   & 3       & 9        &  0.36    &  5       & 0.41     &       & 1.29         & CS2  \\
 07134+1005   & 0.4  $\pm$ 0.1   &     &          &          &  2.8     & 0.024    & 0.14      & 0.38 / 0.26      & HV / CS2 \\
 08005-2356   & 0.7  $\pm$ 0.3   &     &          &      &  4       & 0.18     & 0.27      & 0.52 / 0.43      & CS2  \\
 08143-4406   & 0.8  $\pm$ 0.1   & 4       & 9        &  0.55    &  5.8     & 0.66     &       &              &      \\
 08544-4431   & 1.45 $\pm$ 0.09  &     &          &      &  6       & 0.99     &       & 0.46         & CS2?     \\
 12175-5338   & 0.25 $\pm$ 0.09  &     &          &      &  3       & 0.24     &       &              &      \\
 16594-4656   & 2.2  $\pm$ 0.3   & 2.6     & 10, 11    &      &  7       & 2.1      &       &              & CS (*)   \\
 17086-2403   & 0.86 $\pm$ 0.09  & 6       & 9        & 0.56     &  2       & 0.56     &       & 0.3          & HV (CS2?)\\
 17097-3210   & 0.06 $\pm$ 0.05  & (0.2)   &          & (0.08)   &  5       & 0.95     &       &              &      \\
 17150-3224   & 0.68 $\pm$ 0.09  & $<$18 (2) & 9     & (0.9)    &  5       & 1.8      &       &              &      \\
 17245-3951   & 1.0  $\pm$ 0.1   &     &          &      &  5       & 1.0      & 1.5       &              & HV   \\
 17395-0841   & 1.1  $\pm$ 0.2   &     &          &      &  2       & 0.87     &       & 0.23         & HV \\
 17423-1755   & 1.13 $\pm$ 0.09  & 3.2--3.7 &       &   0.6    &  4       & 0.60     &       & 0.53         & CS1 / HV \\
 17436+5003   & 0.24 $\pm$ 0.09  &   1.2    &       & 0.03     &  0.9     & 0.026    & 0.064     & 0.18         & CS1  \\
 18025-3906   & 1.15 $\pm$ 0.09  &     &          &      &  2       & 0.23     & 0.34      & 0.92 / 0.81      & CS1 / HV \\
 18062+2410   & 0.6  $\pm$ 0.2   & 4.5--5.3 &       & 0.14     &  1.4     & 0.14     &       & 0.46         & CS1 / HV \\
 HD 172324    & 0.03 $\pm$ 0.02  &     &          &      &  1.5     & 0.056    & 0.11      &              &      \\
 19114+0002   & 0.60 $\pm$ 0.05  &     1.5    & 4     &   0.32   &  5       & 0.54     & 0.62      &              & HV   \\
 19200+3457   & 0.3  $\pm$ 0.1   &     &          &      &  2.9     & 0.15     & 0.22      &              &      \\
 19386+0155   & 1.05 $\pm$ 0.09  &     &          &      &  2.9     & 0.35     &       & 0.80         & CS1  \\
 19500-1709   & 0.37 $\pm$ 0.09  & $>$4   & 12       &      &  1.0     & 0.20     &       &              &      \\
 20000+3239   & 1.6  $\pm$ 0.1   & (5, 8)   &          &(1.0, 1.7) & $>$10    &$>$1.7    &       & ?            &          \\
 20462+3416   & 0.38 $\pm$ 0.09  &     &          &      &  4       & 0.25     & 0.38      &              & HV   \\
 22023+5249   & 0.52 $\pm$ 0.09  & 3.3--3.9 &       & 0.47, 0.50&  5       & 0.52     & 0.55      &              & HV   \\
 22223+4327   & 0.2  $\pm$ 0.1   &     &          &      &  2.6     & 0.21     &       &              &      \\
 22272+5435   & 0.9  $\pm$ 0.2   &  1.6, 2.7   & 8     & 0.26, 0.39&  4.5     & 0.47     &       & 0.43         & CS2  \\
 23304+6147   & 1.4  $\pm$ 0.2   &  4.7, 5    & 5, 9  &  0.64    &  4.5     & 0.64     &       & 0.76         & CS2  \\
\hline
\end{tabular}
\smallskip
\begin{tabular}{p{\textwidth}}
DCS = dominated by circumstellar reddening; HV = high radial velocity;
CS1 designated DCS based on lat/long vs. reddening, excluding those
that are discarded based on interstellar (IS) reddening estimate.
CS2 indicates DCS found by estimating the upper limit to the IS reddening.
\\
\noindent [1] \citet{Reddy99}; [2] \citet{Klochkova99}; [3] \citet{Garcia-Lario99}; [4] \citet{Zacs99,Zacs99b};
\ [5] \citet{Klochkova00}; [6]~\citet{Bakker97}; [7] Hrivnak \& Kwok 1991; [8] \citet{Woodsworth90}; [9] \citet{Reddy96};
\ [10] \citet{Hrivnak00}; [11] \citet{Steene03}; [12] \citet{Clube04}, $A(V)=1.2$.
(*) \object{IRAS 16594-4656} is a well known bi-polar PPN which is thought to have
a high internal extinction (see also Sect.~\ref{sec:extinction}).
\end{tabular}
\end{table}