\begin{table}%t1
  %\centering
\par
  \caption{\label{pm.confirmation}Multi-epoch astrometric measurements of WDS~19312+3607.}
%\centerline
{\small
  \begin{tabular}{@{} lccl @{}}
  \hline
  \hline
            \noalign{\smallskip}
Epoch  		& $\rho$ 		& $\theta$	& Source\tablefootmark{a} 		\\
  		& [arcsec] 		& [deg]		&			\\
            \noalign{\smallskip}
            \hline
            \noalign{\smallskip}
1952 Jul. 17  	& $45.5\pm0.4$		& 348		& POSS-I Red		\\
1988 Jun. 13  	& $46.2\pm0.4$		& 347		& POSS-II Blue		\\
1992 Aug. 31  	& $46.0\pm0.4$		& 348		& POSS-II Red		\\
1993 Jun. 13  	& $45.7\pm0.4$		& 347		& POSS-II Infrared  \\
1994 Aug. 20  	& $45.82\pm0.10$	& 347.3		& SDSS~DR7		\\
1998 Jun. 01  	& $45.80\pm0.12$	& 347.4		& 2MASS		\\
2001 Aug. 26  	& $45.90\pm0.06$	& 347.5		& CMC14		\\
2004 Oct. 30  	& $45.81\pm0.10$	& 347.4		& IRAC			\\
2008 Mar. 07 	& $45.82\pm0.15$	& 347.3		& Tacande		\\
2008 May 05 	& $45.70\pm0.15$	& 347.4		& CAFOS		\\
2008 Oct. 23 	& $45.80\pm0.15$	& 347.3		& Tacande		\\
%2009 .. .. 	& ...$\pm$...	 	& ...		& 2.2~m CAHA 		\\
            \noalign{\smallskip}
  \hline
\end{tabular}}
\tablefoot{\tablefoottext{a}{POSS: SuperCOSMOS (Hambly et~al. \cite{Hambly2001}) digitisations of the First (1948--1958) 
and Second (1985--2000) Palomar Observatory Sky Survey;
2MASS: Two-Micron All-Sky Survey (Skrutskie et~al. \cite{Skrutskie2006});
SDSS~DR7: Sloan Digital Sky Survey (Abazajian et~al. \cite{Abazajian2009});
CMC14: Carlsberg Meridian Catalog~14 (Mui\~nos \cite{Muinos2006});
IRAC: {\em Spitzer} Heritage Archive, program name/identification INR/3286;
CAFOS: Calar Alto Faint Object Spectrograph with the Site\#1d\_15 detector at
the 2.2~m Calar Alto Teleskop in Almer\'{\i}a, Spain; 
Tacande: dual CCD camera SBIG ST-8XME at the 0.4~m Telescopio del Observatorio
de Tacande in La Palma, Spain.}}
\end{table}