\begin{table}%t1
\caption{\label{tab1}Literature and presently optimised coordinates.}
%\centering
\small
\begin{tabular}{lrrrrrrrrr}
\hline\hline \noalign{\smallskip}
\multicolumn{5}{c}{Literature}&\multicolumn{5}{c}{This paper}\\
\cline{2-5}
\cline{7-10}
Cluster&$\alpha(2000)$&$\delta(2000)$&$\ell$&$b$&&$\alpha(2000)$&$\delta(2000)$&$\ell$&$b$\\
&(h~m~s)&$(^{\circ}~^{\prime}~^{\prime\prime})$&$(^{\circ})$&$(^{\circ})$&&(h~m~s)&$(^{\circ}~^{\prime}~^{\prime\prime})$&$(^{\circ})$&$(^{\circ})$ \\
\hline
Be~63 &02 19 36&63 43 00&132.506&2.49& &02 19 30.8&63 43 43&132.49&2.50\\
Be~84 &20 04 43&33 54 18&70.924&1.27& &20 04 43&33 54 15&70.92&1.27\\
Cz~6  &02 02 00&62 50 00&130.887&1.05& &02 01 57&62 50 48&130.87&1.07\\
Cz~7  &02 02 24&62 15 00&131.159&0.52& &02 03 01&62 15 20&131.16&0.53\\
Cz~12 &02 39 12&54 55 00&138.079&--4.75& &02 39 25&54 54 55&138.11&--4.74\\
Ru~141 &18 31 19&--12 19 11&19.69&--1.20& &18 31 23&--12 17 50&19.72&--1.21\\
Ru~144 &18 33 34&--11 25 00&20.749&--1.27& &18 33 33&--11 25 09&20.74&--1.27\\
Ru~172 &20 11 34&35 35 59&73.11&1.01& &20 11 39&35 37 30&73.14&1.00\\
FSR~101 &18 49 14&02 46 06&35.147&1.74& &18 49 14&02 46 06&35.14&1.74\\
FSR~1430 &08 51 52&--44 15 56&264.65&0.08& &08 51 52&--44 16 14&264.66&0.07\\
FSR~1471 &09 24 08&--47 20 39&270.72&2.14& &09 24 04&--47 20 56&270.71&2.13\\
FSR~162 &20 01 32&25 14 06&63.211&--2.75& &20 01 26&25 12 30&63.17&--2.74\\
FSR~178 &20 13 07&29 07 12&67.877&--2.83& &20 13 8.2&29 07 24&67.88&--2.83\\
FSR~198 &20 02 24&35 41 19&72.184&2.62& &20 02 27&35 40 31&72.17&2.60\\
\hline
\end{tabular}
\vspace*{-2mm}
\end{table}