\begin{table}%t4
%\centering
\par
\caption{\label{tab4}List of VSC stellar candidates as possible optical counterparts of known X-ray sources.}
 \small
\begin{tabular}{ccccccc}
\par
\hline\hline
 Simbad id. & $\alpha$ & $\delta$ &  $(B-V)_0$ & $m_b$ & $t$~(Myr) & Type \\
\hline
  &   08 51 12.65  & --56 48 03.1 &   0.378 &   11.92~$\pm$~0.21 &    0.5 &  \\
   &   08 56 31.59 &  --57 00 41.7  &  0.726 & 12.25~$\pm$~0.22 &    7.8 &  \\
TYC8947-153-1 & 10 02 31.36 & --62 03 29.5 & 0.558 & 10.59~$\pm$~0.25 &  0.3 &  \\
   &  10 26 46.04  & --57 35 47.3 &   0.717 & 10.88~$\pm$~1.73 &    0.0 & \\
   &  10 36 41.64 & --60 36  01.5  &  0.532 & 12.80~$\pm$~0.73 &    2.0 & \\
GSC08626-01643 & 10 52 23.68 & --58 41 15.1 & 0.927 &12.22~$\pm$~0.25 & 0.0 & Em \\
   &  10 56 42.45 & --62 17 41.1 &   0.918 & 10.96~$\pm$~0.25 &    0.1 & \\
   &  11 26 52.96 & --58 46 38.6 &   0.305 & 11.59~$\pm$~0.98 &    1.4 & \\
HD304428  &  11 32  08.41 & --58 03 20.2 &  0.846 &  09.67~$\pm$~0.11 &    1.9 & \\
 &  12 00 37.06 & --63 37  07.4 &   1.023 & 11.01~$\pm$~1.41 &    0.3 & \\
HD104919 & 12 04 48.86 & --64 09 55.1 &  0.199 &  09.42~$\pm$~0.48 &   1.3 & PMS \\
TYC8444-802-1& 12 09 41.88 & --58 54 44.7 & 0.661 & 10.21~$\pm$~1.94 & 3.6 & PMS \\
TYC8644-340-1 & 12 11 31.49 & --58 16 52.7 & 0.171 &10.80~$\pm$~0.10 & 12.1 &PMS \\
 &  12 12 48.97 & --62 30 31.3 &   0.544 & 11.17~$\pm$~0.47 &    0.1 &  \\
 & 12 13 57.07 & --62 55 12.5 &   0.551 & 11.46~$\pm$~0.25           &  0.2  &  \\
 & 12 17 04.89  & --57 43 55.7 &   0.336  & 11.88~$\pm$~0.25  &    2.9  &  \\
TYC8645-1339-1 & 12 18 27.73 & --59 43 12.1 &0.845 & 10.14~$\pm$~1.29 & 1.5 & PMS\\
 & 12 26 39.44 & --61 13 40.2  &  0.514 & 11.59~$\pm$~0.70   & 6.5 &  \\ 
 & 12 28 55.73 & --63 11 51.4  &  0.990 & 12.26~$\pm$~0.36   & 0.6 & \\
 & 12 34 57.84 & --59 49 37.6  &  0.749 & 12.27~$\pm$~0.54   & 3.6 & \\  
TYC8992-605-1 & 12 36 39.11 & --63 44 43.1 & 0.780 & 09.88~$\pm$~1.47 & 0.8 & PMS \\
 & 12 38 27.67 & --59 08 24.0  &  0.719 & 12.70~$\pm$~0.54   & 6.7  & \\
 & 12 39 32.54 & --62 18 42.3  &  0.347 & 12.14~$\pm$~0.56   & 0.8 &  \\
HD110244 & 12 41 18.20 & --58 25 55.9 & 0.687 & 09.78~$\pm$~0.77  & 6.3 & PMS  \\
HD311775 & 12 44 59.22 & --60 26 41.3  &  1.175 & 10.81~$\pm$~0.50   & 0.6 &  \\
GSC08659-01804 & 12 48 31.60 & --59 44 49.0 & 1.078 &10.75~$\pm$~0.16  & 1.5 &  \\
TYC8990-701-1 & 13 13 28.19 & --60 00 44.7 & 0.357 & 10.53~$\pm$~0.15  & 3.5 &  \\
 & 13 28 46.38 & --63 19 53.2  &  0.642 & 12.89~$\pm$~0.43   & 0.4 &  \\
V851Cen & 13 44  01.00 & --61 22  03.0  & 1.048 & 08.47~$\pm$~1.45  & 0.2 & CanVen  \\
 & 13 51 58.34 & --60 27  03.0  &  0.404 & 12.42~$\pm$~1.62   & 0.5 &  \\
 & 13 52 05.18 & --59  00 26.6 & 0.101 & 11.38~$\pm$~0.30 & 0.2 &  \\
 & 14 06 02.88 & --58 32 43.5  &  0.592 & 11.21~$\pm$~0.41   & 0.7 &  \\
2E3210 & 14 15 44.40 & --61 42 11.2  &  0.577 & 12.92~$\pm$~0.19   & 0.1 &  \\
HD124831 & 14 18  05.03 & --62 18 58.5  &  1.110 &  09.51~$\pm$~2.35   & 0.1 &  \\
V841Cen & 14 34 16.41 & --60 24 27.9  & 1.133 &  08.96~$\pm$~0.36  & 0.0 & CanVen \\
 & 14 34 51.38 & --61 44 43.6  &  0.674 & 12.21~$\pm$~0.18   & 1.6 &  \\
2MASSJ14471959-6152349 & 14 47 19.61 & --61 52 36.5 & 1.093 & 12.84~$\pm$~0.50 & 4.3 &  \\
2E1512.5-5844 & 15 16 32.27 & --58 55 23.4 & 0.811 & 11.21~$\pm$~2.67  & 0.8 &  \\
TYC8694-1685-1 & 15 18 01.86 & --53 17 27.7 & 0.659 & 10.55~$\pm$~0.65  & 1.4 & PMS  \\
FV Lup & 15 23 00.44 & --53 31 14.4  &  0.467 & 10.68~$\pm$~3.09   & 2.8 & Algol \\
 & 15 29 37.02 & --57 14 53.7  &  1.322 & 12.71~$\pm$~0.75   & 0.1 &  \\
 & 15 32 49.79 & --54 10 24.7  &  0.615 & 13.96~$\pm$~2.07   & 0.0 &  \\
V343 Nor & 15 38 57.65 & --57 42 25.2  & 0.123 & 08.72~$\pm$~2.27 & 0.3 & BYDra \\
 & 15 46 36.04 & --61 27 37.9  &  0.586 & 10.46~$\pm$~1.09   & 0.6 &  \\
 & 15 53 48.39 & --57 38 11.3  &  1.021 & 11.62~$\pm$~0.58   & 2.5 &  \\
 & 16 00 48.68 & --56 04 50.3  &  0.297 & 12.30~$\pm$~0.10   & 4.4 &  \\
 & 16 02 17.02 & --59 44 30.9  &  0.495 & 10.59~$\pm$~0.63   & 0.8 &  \\
 & 16 05 15.28 & --58 40 38.0  &  0.539 & 12.00~$\pm$~0.26   & 6.6 &  \\
 & 16 05 50.74 & --58 25 47.3  &  0.773 & 12.92~$\pm$~1.35   & 4.4 &  \\
 & 16 08 42.02 & --58 15 18.4  &  0.522 & 10.42~$\pm$~0.25   & 6.2 &  \\
 & 16 09 25.45 & --60 53 14.9  &  0.707 & 12.88~$\pm$~1.81   & 7.4 &  \\
CM Nor & 16 12 50.39 & --58 24 40.0 & 0.630 & 10.42~$\pm$~0.80  & 3.5 & Algol \\
 & 16 12 51.36 & --54 16 17.0  & --0.204 & 12.09~$\pm$~0.31   & 7.9 &  \\
 & 16 18 46.80 & --51 43 30.8  &  1.044 & 12.05~$\pm$~0.36   & 1.7 &  \\
 & 16 20 04.18 & --57 53 24.8  &  0.753 & 11.96~$\pm$~1.44   & 4.7 &  \\
 & 16 23 19.60 & --52 27 29.3  &  1.416 & 11.80~$\pm$~1.17   & 2.0 &  \\ 
 & 16 27 14.63 & --52 09 32.6  &  0.393 & 12.92~$\pm$~0.51   & 1.7 &  \\
 & 16 29 24.67 & --59 51 46.0  &  0.282 & 10.75~$\pm$~1.63   & 1.8 &  \\ 
 & 16 33 48.32 & --51 19 08.6  & --0.062 & 12.25~$\pm$~0.13   & 5.9 &  \\
 & 16 36 51.68 & --51 38 18.3  &  0.301 & 11.97~$\pm$~1.76   & 2.4 &  \\
 & 16 57 20.28 & --53 43 30.8  &  0.515 & 12.21~$\pm$~2.04   & 1.4 &  \\
 & 17 38 32.45 & --58 32 26.3  &  0.836 & 13.25~$\pm$~0.25   & 0.3 &  \\  
 & 17 44 42.56 & --53 15 46.4  &  0.719 & 15.21~$\pm$~0.29   & 2.2 &  \\
 & 17 51 45.59 & --60 09 40.0  &  0.264 & 15.46~$\pm$~0.65   & 8.5 &  \\
 \hline
\end{tabular}
\end{table}