\begin{table}%T4
\caption{\label{tab4}\label{HRC/BHRC_comparison}Comparison of the HRC and BHRC classifications.}
%\centerline
{
\begin{tabular}{lrrrr}
\hline\hline
Class            &    HRC &      &  BHRC  &    \\
                 & number &  \%  & number & \% \\
\hline 
blank field      &  155 &   2.9 &   95 &   3.4 \\ 
galaxy           &  238 &   4.5 &  140 &   4.4 \\
galaxy cluster   &  262 &   4.9 &  153 &   4.8 \\
QSO/AGN~         & 2215 &  41.5 & 1801 &  56.2 \\
white dwarf      &   45 &   0.8 &   33 &   1.0 \\
CV               &   26 &   0.5 &   12 &   0.4 \\
bright stars     & 1219 &  22.8 &   93 &   2.9 \\
F-G star         &   45 &   0.8 &  570 &  17.8 \\
K star           &  141 &   2.6 &  323 &  10.1 \\ 
M star / C star  &  197 &   3.7 &   71 &   2.2 \\
unidentified     &  604 &  11.3 &    6 &   0.2 \\
no spectrum      &  194 &   3.6 &    -- &     -- \\ 
All sources      & 5341 & 100.0 & 2791 & 100.0 \\ 
All counterparts & 5341 & 100.0 & 3202 & 100.0 \\
\hline
\end{tabular}}
\smallskip
Note: galaxy clusters include multiple galaxies and groups; bright stars include stars that have been classified as B-A types.
\end{table}