\begin{table}%t3
\par
\caption{\label{number_count}Total number of stars per sq. deg. according to the 
    USNO-A2.0 catalog and the Besan\c{c}on model.}
 \small
  %\centering
\par
  \begin{tabular}{cc|cc}
   \hline\hline
    $l$      & $b$       & \# USNO-A2.0                     & \# Besan\c{c}on model   \\ 
    deg    & deg     & $13.25 \le m_{\rm USNO\_R} \le 16.25$ & $13 \le m_{i'} \le 16$  \\ \hline
    40.5   & $-$4.2    &  7748                            & 15~103                   \\ 
    41.5   & $-$4.2    &  8439                            & 14~623                   \\ 
    42.5   & $-$4.2    & 10~670                            & 14~352                   \\ 
    43.5   & $-$4.2    & 14~814                            & 14~248                   \\ 
    44.5   & $-$4.2    & 14~248                            & 14~208                   \\ 
    45.5   & $-$4.2    & 10~906                            & 13~754                   \\ 
    46.5   & $-$4.2    & 14~910                            & 13~645                   \\ 
    47.5   & $-$4.2    & 17~018                            & 13~194                   \\ 
    48.5   & $-$4.2    & 17~065                            & 13~175                   \\ 
    49.5   & $-$4.2    & 14~482                            & 12~959                   \\ 
    50.5   & $-$4.2    & 14~295                            & 12~370                   \\ 
    51.5   & $-$4.2    & 14~424                            & 12~459                   \\ 
    52.5   & $-$4.2    & 16~737                            & 12~260                   \\ 
    53.5   & $-$4.2    & 15~890                            & 11~997                   \\ 
    54.5   & $-$4.2    & 14~131                            & 11~770                   \\ 
    55.5   & $-$4.2    & 14~555                            & 11~705                   \\ 
    56.5   & $-$4.2    & 15~682                            & 11~456                   \\ 
    57.5   & $-$4.2    & 14~562                            & 11~370                   \\ 
    58.5   & $-$4.2    & 13~195                            & 11~058                   \\ 
    59.5   & $-$4.2    & 11~301                            & 10~877                   \\ 
    60.5   & $-$4.2    & 11~194                            & 10~436                   \\ 
    61.5   & $-$4.2    &  9188                            & 10~489                   \\ 
    62.5   & $-$4.2    &  6181                            & 10~139                   \\ 
    63.5   & $-$4.2    &  4968                            &  9903                   \\ 
    \hline
  \end{tabular}
  \end{table}