\begin{table}%t1
   %\centering
\par
      \caption{Schmidt plates used in the Alpha Per study.\label{plates}}
\begin{tabular}{cccccccccc}
   \hline \hline
Plate no.&Material&Emulsion&Filter&Field no.&Epoch&Exposure&\multicolumn{2}{c}{Plate Centre}&Notes\\
&&&&&&Time&RA&Dec&\\
&&&&&&(minutes)&\multicolumn{2}{c}{B1950}&\\
\hline
3623&3~mm glass&IIIaJ&GG385&155&1990.796&60&3 18 00&+55 00 00&$B_{J}$ Plate\\
2730&3~mm glass&IIIaJ&GG385&199&1989.697&60&3 00 00&+50 00 00&''\\
2738&3~mm glass&IIIaJ&GG385&200&1989.700&60&3 30 00&+50 00 00&''\\
2718&3~mm glass&IIIaJ&GG385&248&1989.689&60&3 16 00&+45 00 00&''\\
2843&3~mm glass&IIIaF&RG610&155&1989.774&60&3 18 00&+55 00 00&2nd epoch R\\
2822&3~mm glass&IIIaF&RG610&199&1989.767&60&3 00 00&+50 00 00&''\\
2832&3~mm glass&IIIaF&RG610&200&1989.769&60&3 30 00&+50 00 00&''\\
2817&3~mm glass&IIIaF&RG610&248&1989.763&60&3 16 00&+45 00 00&''\\
5498&film&IVN&RG9&155&1993.772&60&3 18 00&+55 00 00&I Plate\\
6569&film&IVN&RG9&199&1995.875&60&3 00 00&+50 00 00&''\\
4388&film&IVN&RG9&200&1991.952&60&3 30 00&+50 00 00&''\\
6057&film&IVN&RG9&248&1994.919&60&3 16 00&+45 00 00&''\\
1231&3~mm glass&103a&E&1232&1954.742&50&3 17 00&+54 21 00&1st epoch R\\
845&3~mm glass&103a&E&845&1953.769&45&3 30 20&+48 19 00&''\\
1249&3~mm glass&103a&E&1249&1954.761&50&2 56 30&+48 22 20&''\\
\hline
\end{tabular}
\end{table}