\begin{table}%t5
\caption[]{\label{tab:bfcen_tmin}Times of minima 
for BF\,Cen. O--C values are calculated from the ephemeris given in Eq.~(\ref{eq:bfcen_eph}) adopting a circular orbit. 
References are: 
O28  = Oosterhoff (\cite{o28}),
O30  = Oosterhoff (\cite{o30}),
WR94 = Wolf \& Ratzlaff (\cite{wr94}),  
OZ04 = Ogloza \& Zakrzewski (\cite{oz04}).
}
\begin{tabular}{llcll}
\hline\hline\noalign{\smallskip}
%HJD - 2\,400\,000  & \multicolumn{1}{c}{r.m.s.} &  Type &   \multicolumn{1}{c}{O-C} & Ref.    \\
HJD - 2\,400\,000  & \multicolumn{1}{c}{rms} &  Type &   \multicolumn{1}{c}{O--C} & Ref.    \\
\hline\noalign{\smallskip}
19\,878.270     &  0.01    &    P  & $-0.009$ &   O30   \\
23\,974.257     &  0.01    &    P  &  +0.072 &   O28   \\
23\,985.231     &  0.01    &    P  & $-0.034$ &   O28   \\
24\,262.292     &  0.01    &    P  &  +0.027 &   O28   \\
24\,288.200     &  0.01    &    P  &  +0.082 &   O28   \\
25\,381.313     &  0.01    &    P  & $-0.032$ &   O30   \\
25\,418.272     &  0.01    &    P  & $-0.006$ &   O30   \\
45\,055.7275    &  0.0003  &    P  &  +0.0002&   This study   \\
45\,064.953   &    0.008   &    S  & $-0.008$ &   WR94                   \\ 
45\,087.100   &    0.009   &    S  & $-0.020$ &   WR94                   \\ 
45\,380.7405  &    0.0001  &    P  & $-0.0001$&   This study             \\
47\,628.128   &    0.005   &    S  & $-0.005$ &   WR94                   \\ 
47\,665.064   &    0.002   &    S  & $-0.003$ &   WR94                   \\ 
50\,556.9475  &    0.0031  &    S  &  +0.0012&   OZ04                   \\ 
50\,558.7950  &    0.0014  &    P  &  +0.0021&   OZ04                   \\ 
51\,238.3685  &    0.0010  &    P  &  +0.0024&   OZ04                   \\ 
51\,236.5238  &    0.0011  &    S  &  +0.0044&   OZ04                   \\ 
51\,531.9907  &    0.0065  &    S  &  +0.0047&   OZ04                   \\ 
51\,533.8332  &    0.0011  &    P  &  +0.0005&   OZ04                   \\ 
\hline\noalign{\smallskip}
\end{tabular}
\end{table}