\begin{table}%t1
\caption {Properties of the three Herbig Ae stars observed with the CAMIRAS mid-InfraRed camera. 
First two columns: coordinates of the objects (right ascension and declination); third column: 
their spectral type; fourth column: their distance, as deduced from Hipparcos data; fifth column: 
flux in the IRAS 25~$\mu$m band; sixth column: flux at 20~$\mu$m obtained 
in this paper; seventh column: age of the objects in Myr.
\label{objets}}
\small
%\centerline
 {\begin{tabular}{lllcccccl}
 \hline\hline
 Object & RA (2000) & Dec (2000) & Spectral type &Distance (pc) & $F_{25}$ (Jy) & $F_{20}$ (Jy)& Age (Myr)& References\\
 \hline
 \noalign{\smallskip}
HD 135344 & 15 15 48.4 & --37 09 16 & F4V& 140$_{-42}^{+42}$& 6.7 & 5 $\pm$ 1   &$8\pm4$ &\tiny{1, 2, 4, 8, 10, 11}\\
HD 163296 & 17 56 21.4 & --1 57 20 & A3Ve & 122$_{-16}^{+13}$ & 21 &18 $\pm$ 4   & $7\pm5$ &  3, 4, 5, 11, 12\\
CQ~Tau & 05 35 58.4 & +24 44 54 &   A1-F5IVe &   100$_{-17}^{+25}$& 20.6 & $23 \pm 3$ & 10& \tiny{6, 7, 9, 12}\\
\hline
\end{tabular}}
\par
\smallskip
 References: (1) \citet{COUL98}; (2) \citet{DD03}; (3) \citet{JAYA01}; (4) \citet{MEEUS01}; (5) \citet{MANSARG97}; (6) \citet{MANSARG00}; (7) \citet{NATTA01}; (8) \citet{SYL96}; (9) \citet{TESTI01}; (10) \citet{THI01}; (11)~\citet{VB05}; (12) \citet{VDA98}. 
\end{table}