\begin{table}%tb1 %\centering \par \caption{\label{jouphot}Photometric data sets used.} \begin{tabular}{rcrccclrr} \hline\hline\noalign{\smallskip} Source&Time interval&No. of&Comparison & Check & Passband(s) \\ &(JD-2~400~000) & obs. & & \\ \noalign{\smallskip}\hline\noalign{\smallskip} Stebbins (\cite{steb1915}) & 18~681.7--19~309.9&191&HD 37128& -- &green ($V$)\\ Storer (\cite{storer1930}) & see the text & 30&HD 35411& -- & ? \\ Worley (\cite{worley1955})& see the text &112& ? & -- & {\it BV} \\ Johnson et~al. (\cite{john1966}) & 38~304.0--38~729.9&5&all-sky & -- &\ubv \\ Koch \& Hrivnak (\cite{koch1981}) & 43~865.7--44~326.5& 64&HD 36840&HD 36898&green \\ & 43~870.7--44~326.5& 62&HD 36840&HD 36898&blue \\ Perryman et~al. (1997) & 47~915.7--49~061.5& 89&all-sky &--&$H_{\rm p} $($V$)\\ this paper, Hvar & 54~015.6--54~720.6&145&HD 36591&HD 36351&\ubv \\ \hline \end{tabular} \vspace*{1.5mm} \end{table}