\begin{table}%t1
\caption{\label{tab1}Target list.}             % title of Table
%\centerline
 { \begin{tabular}{l l l l l l l l l l r}        % centered columns (4 columns)
\hline\hline                 % inserts double horizontal lines
Object  & RA & Dec. &  ${\it SpT}$&$R$&$I$&$J$&$d$& H$\alpha$ & Ref.  \\ 
&&&&(mag)&(mag)&(mag)&(pc)&{\it EW}($\AA$)&\\% table heading 
\hline                        % inserts single horizontal line
2MASSW J1438082+640836 & 	14 38 08.2   & 	+64 08 36 & 	M9.5 & \ldots	 & 	16.8 & 	12.92 & 	7.2 $\pm$ 0.5&$-2.36$  & 1 \\
2MASSW J1507476-162738 & 	15 07 47.69   & 	--16 27 38.6 & 	L5 & 	18.9 & 	16.5 & 	12.8 & 	7.33  $\pm$ 0.03&$-5.01$ & 	3, 4, 5   \\  
2MASS J17312974+2721233 & 	17 31 29.74   & 	+27 21 23.3 & 	L0 & 	\ldots &\ldots 	 & 	12.09 & 	11.80 $\pm$ 0.70 &$-5.98$ &1,2  \\
2MASSI J1807159+501531 & 	18 07 15.93   & 	+50 15 31.6 & 	L1.5 & \ldots	 & 	\ldots & 	12.96 & 	14.6  $\pm$ 1.0 &$-1.38$ &1, 2, 3 \\
% inserting body of the table
\hline                                   %inserts single line
\end{tabular}}
\par
\smallskip
Note: {Ref.- 1. \cite{SCH 2007},  2. \cite{Jameson 2007},  3. \cite{Cruz 2003},  4. \cite{Reid 2000}, 5. Knapp et~al. (2004).  
H$\alpha$ EW from \cite{SCH 2007}}.
\end{table}