\begin{table}%tb1
\caption{\label{check}Seasonal all-sky \ubv\ values of the check star HR 289.}
%%\centering

\small
\begin{tabular}{cccccccc}
\hline\hline\noalign{\smallskip}
 Epoch &HJD&Number of& $V$&$B$&$U$&$B-V$&$U-B$\\
 HJD-2~400~000&mean&observations& & & & &     \\
\hline\noalign{\smallskip}
45~648.2343--46~007.4837  & 45~956.1050& 135&   6.473~\p ~0.011& 6.722~\p ~0.010& 6.820~\p ~0.013& 0.250& 0.098\\
46~061.2300--46~339.5874  & 46~226.3834&  42&   6.471~\p ~0.009& 6.721~\p ~0.012& 6.816~\p ~0.019& 0.250& 0.095\\
46~436.2196--46~715.5037  & 46~600.2144&  21&   6.469~\p ~0.011& 6.721~\p ~0.013& 6.815~\p ~0.015& 0.253& 0.093\\
47~787.4750--47~915.2473  & 47~828.4701&  20&   6.476~\p ~0.007& 6.728~\p ~0.010& 6.822~\p ~0.011& 0.252& 0.094\\
49~751.2799--49~751.3633  & 49~751.3216&   2&   6.457~\p ~0.013& 6.712~\p ~0.016& 6.798~\p ~0.007& 0.256& 0.086\\
50~863.2342--50~863.3009  & 50~863.2613&   4&   6.471~\p ~0.017& 6.713~\p ~0.008& 6.804~\p ~0.012& 0.242& 0.091\\
51~435.5329--51~520.3028  & 51~476.5423&  18&   6.475~\p ~0.009& 6.723~\p ~0.011& 6.816~\p ~0.012& 0.248& 0.093\\
51~943.2646--52~284.2443  & 52~201.4185&  29&   6.476~\p ~0.006& 6.723~\p ~0.009& 6.819~\p ~0.008& 0.247& 0.096\\
52~544.5069--52~860.6009  & 52~706.7041&  78&   6.475~\p ~0.007& 6.721~\p ~0.007& 6.817~\p ~0.008& 0.246& 0.096\\
52~923.4351--53~284.5745  & 53~174.2352&  64&   6.474~\p ~0.011& 6.720~\p ~0.011& 6.818~\p ~0.011& 0.246& 0.098\\
53~377.2370--53~686.3523  & 53~520.6570&  29&   6.474~\p ~0.006& 6.722~\p ~0.008& 6.820~\p ~0.011& 0.249& 0.098\\
53~744.2360--54~107.2372  & 53~934.3600&  68&   6.474~\p ~0.008& 6.721~\p ~0.009& 6.818~\p ~0.009& 0.247& 0.096\\
54~114.3084--54~356.5029  & 54~175.3724&  30&   6.472~\p ~0.008& 6.721~\p ~0.008& 6.820~\p ~0.009& 0.249& 0.099\\
\hline
\end{tabular}
\end{table}