\begin{table}%t2
\caption{\label{tab2}Duplicity detection and measures.         }
%\centering
\par
\begin{tabular}{rccccccc}
\hline
\hline\noalign{\smallskip}
  HD~      &    &  Hip. & Hip.   & Hip. & WDS & WDS  & Interf.   \\ 
           &    &  ${\rho}$  & dHp     & Hvar&  ${\rho}$  &      &   ${\rho}$  
\\
           &    & arcsec  & $\Delta m$&     & arcsec & $\Delta m$ & arcsec \\
\noalign{\smallskip}
\hline\noalign{\smallskip}
  3    &        &        &       &   D  &       &       &    $<$0.030   \\ 
  319  &         &        &       &      &  2.1  &   5.1 &        \\            
  2904 &        &        &       &   C  &       &       &   \\ 
  4158 &         &        &       &   -- &       &       &  \\        
  5789 &       &   7.856&   0.87&   R  &  7.8  &   0.8 &       \\ 
  6173 &         &        &       &   -- &       &       &   \\ 
  6870  &        &        &       &      &       &       &  \\ 
  7908  &        &        &       &      &       &       &       \\ 
  11~413 &        &        &       &   U   &       &       &      \\
  11~503 &   &   7.606&   0.05&   D  &  8.6  &   0.0 &    7.267  \\
  13~755 &        &        &       &   U   &       &       &      \\
  15~165 &        &        &       &   P  &&&      \\
  16~955 &        &   2.992&   3.93&      &       &       &           \\
  21~335 &        &        &       &      &       &       &   0.075      \\
  22~470 &      &   0.152&   1.36&   P  &       &       &   $<$0.054       \\    
  23~258 &        &        &       &      &       &            &      \\
  23~392 &       &        &       &   C  &       &       &   $<$0.155      \\
  24~472 &      &        &       &       &       &        &      \\
  26~801 &      &        &       &       &       &        &      \\
  30~422 &      &        &       &      &       &         &      \\
  30~739 &        &        &       &      &       &       &      \\
  31~295 &        &        &       &   C  &       &       &   \\     
  34~787 &       &        &       &   C  &&&      \\
  35~242 &        &        &       & &&&      \\
  36~496 &        &   0.180&   0.98&   D  &       &       &     0.107         \\
   36~726 &        &        &       &   -- &          &       &         \\       
     37~411 &        &        &       &   -- &&&      \\
  37~886 &        &        &       &   -- &       &       & \\                  
     38~545 &        &   0.155&   0.64&   D  &  0.1  &     --&     0.071      \\
  39~283 &        &        &       &   C  &       &       &    $<$0.038       \\
     39~421 &        &        &       &      &       &       &    $<$0.038       \\ 
  41~580 &        &        &       &   D  &       &       &     \\
  47~152 &        &   0.212&   0.77&   D  &  0.1  &     --&      0.057        \\
  54~272 &        &        &       &   -- &&&      \\
  56~405 &        &        &       &      &       &       &     $<$0.038       
\\ 
  64~491 &        &        &       &      &       &       &     $<$0.124       
\\
  66~684 &        &   3.527&   0.73&   D  &  3.5  &    0.9&   $<$0.038        \\
  74~873 &        &        &       &      &       &       &    $<$0.038        \\
  75~654 &        &        &       &      &       &           &      \\
  79~108 &        &        &       &   C  &       &       &    $<$0.038        \\
  81~104 &        &  5.731 & 1.08  &   D  &  5.8  &  1.0  &     \\
  81~290 &        &        &       &   C  &       &       &          \\         
   83~041 &        &        &       &   C  &&&      \\
  83~277 &        &        &       &   D  &       &       &       \\            
   84~123 &        &        &       &      &       &       &    $<$0.155        \\
  84~948 &        &        &       &   C  &       &       &    $<$0.155       \\ 
  87~271 &        &        &       &   U   &       &           &         \\
  87~696 &        &        &       &   C  &       &       &    $<$0.038       \\ 
  89~239 &        &        &       &   C  &       &       &    $<$0.030      \\
  89~353 &        &        &       &   U   &&&      \\
  90~821 &        &        &       &   -- &       &       &     $<$0.155       
\\
  91~130 &        &        &       &   M  &       &       &    $<$0.030      \\
  97~773 &        &   0.138&   0.04&   D  &       &       &      0.080        \\
  97~937 &        &        &       &      &       &       &      $<$0.030      
\\
 101~108 &       &   7.087&   2.90&   D  &  6.7  &   3.2 &          \\
  102~541 &       &        &       &      &       &       &      \\ 
%
  105~058 &       &        &       &   U   &       &       &    $<$0.155       \\
105~759 &       &        &       &   U   &       &       &            \\ 
  106~223 &       &        &       &   C  &       &       &            \\        
  107~233 &       &        &       &   U   &       &        &         \\  
  108~283 &       &        &       &      &       &       &      $<$0.073      
\\
  109~738 &       &        &        &    &&&      \\
  109~980 &       &        &       &   M  &       &       &    $<$0.038       \\
  110~377 &       &        &       &      &       &       &     $<$0.038       \\
  110~411 &       &        &       &      &       &       &     $<$0.038      \\
  111~005 &       &        &       &   D  &  &&      \\
 111~604 &       &        &       &   U   &       &       &    $<$0.038       \\
  111~786 &       &        &       &      &       &       &      \\
  112~097 &       &        &       &      &       &       &            \\
  118~623 &       &   1.800&   2.04&   D  &  1.1  &  1.9  &                   \\
120~500 &       &        &       & &&&      \\
  120~896 &       &        &       &   C  &       &       &        \\    
  125~162 &       &        &       &      &       &       &      $<$0.030      
\\
  125~489 &       &        &       &   C  &       &       &   $<$0.038      \\
  125~889 &  &&&&&&      \\
  130~158 &       &        &       &   U   &&&      \\
  130~767 &       &        &       &   C  &       &       &         \\
  138~527 &       &        &       &   D  &       &       &    $<$0.038       \\
  141~851 &       &        &       &   C  &  0.1  &    -- &  0.069        \\  
  142~703 &       &        &       &   C  & &&      \\
  142~994 &       &        &       &   -- &  &&      \\
  144~708 &   &   3.350&   3.99&   D  &       &       &    $<$0.038      \\
  148~638 &       &        &       &   D  &&&      \\
  149~130 &       &        &       &   C  &&&      \\
  149~303 &       &  16.356&   3.08&   D  &       &       &    $<$0.038       \\
  153~747 &       &        &       &   U   &&&      \\
  153~808 &       &        &       &      &  0.2  &   --  &  $<$0.038       \\
  154~153 &       &        &       & &&&      \\
  156~954 &       &        &       &   C  & &&      \\
  159~082 &   &        &       &   C  &  0.2  &   --  &   $<$0.05        \\
  160~928 &       &        &       &   C  & 0.1      &   0.0    &     0.086     
 \\
  168~740 &       &        &       &   M  &&&      \\
  168~947 &       &        &       &  --  &       &       &         \\
  169~009 &       &        &       &   U   &       &       &    $<$0.038      \\
  169~022 &       &        &       &      &       &       &     2.392         \\
   170~000 &   &   0.382&   1.45&   P  &  0.6  &   1.5 &     0.125       \\
  170~680 &       &        &       &   C  &       &       &    $<$0.038       \\
  171~948 &       &        &       &   &&&      \\
  174~005 &       &        &       &   C  &&&      \\
  175~445 &       &        &       &   &&&      \\
  177~120 &       &   7.985&   2.19&   U   &  8.0  &   1.5 &              \\     
   177~756 &       &        &       &      &       &       &    $<$0.030      \\
  179~791 &       &        &       &   C  &       &       &    $<$0.030       \\
  183~324 &       &        &       &   &&&      \\
  184~190 &       &        &       &   -- &  &&      \\
  184~779 &       &        &       &   -- &&&      \\
  191~850 &       &        &       &   -- &  &&      \\
  192~424 &       &   6.183&   0.04&   D  &  6.2  &  0.0  &          \\         
   192~640 &       &        &       &   U   &       &       &    $<$0.124       \\
  193~063 &       &  5.396 &  0.57 &   D  &  5.3  &  0.5  &          \\
  193~256 &       &        &       &   D  &       &       &           \\
  193~281 &   &   3.841&   3.41&   D  &  4.7  &  3.0  &       \\
%         
  196~821 &       &        &       &   &&&      \\
  198~160 &   &   2.447&   0.30&   D  &  2.7  &  0.31 &       2.446            
\\
  198~161 &      &   2.447&   0.30&   &&&      \\
  200~841 &       &        &       &   C  & &&      \\
  204~041 &       &        &       &   C  &       &       &    $<$0.155      \\
  204~965 &       &        &       &   C  &&&      \\
  210~111 &       &        &       & &&&      \\
  210~418 &       &        &       &      &       &       &    $<$0.054        
\\                              
  212~150 &       &        &       &   C  & &&      \\
  214~454 &       &        &       & &&&      \\
  216~847 &       &        &       & &&&      \\
  217~782 &       &   0.387&   2.17&   D  &       &       &      0.338        \\
    218~396 &       &        &       &   P  &       &       &                    
\\         
  220~061 &       &        &       &   P  &       &       &      $<$0.030      \\
  220~278 &       &   0.139&   1.13&   D  &       &       &      0.111         \\
  221~756 &       &        &       &   &&&      \\
  223~352 &       &        &       &      & 3.3   & 7.04  &         \\          
    225~218 &   &   5.342&   3.66&   D  &   0.1*    &       &             \\
  261~904 &       &        &       &   -- &&&      \\
  290~492 &       &        &       &   -- & 0.6   &  1.4  &       0.42          
 \\              
  290~799 &       &        &       &   -- &&&      \\
  294~253 &       &        &       &   -- &&&      \\
 \hline
\end{tabular}
\smallskip
HD~225~218: the primary is the A component of a wide visual binary; 
the given separation is that of the Aa components. \\
Remarks from ESA Hipparcos Catalogue (\cite{ESA1997}).  \\ 
Notes on Hipparcos-defined type of variability, the Hvar Type (52):    \\ 
C: no variability detected ("constant''). \\ 
D: duplicity-induced variability. \\ 
M: possibly micro-variable (amplitude $<$0.03~mag). \\ 
P: periodic variable. \\ 
R: $V-I$ colour index was revised due to variability analysis. \\ 
U: unsolved variable which does not fall in the other categories. \\ 
\end{table}