\begin{table}%t1 \caption{\label{tab:ewori_std}Photometric data for \EW\ and the comparison stars.} %\centering \small \begin{tabular}{lllrrrrrrrrrrrr} \hline \hline\noalign{\smallskip} Object&Sp. type&Ref. &$V$&$\sigma$&$b-y$&$\sigma$&$m_1$&$\sigma$&$c_1$ &$\sigma$&$N$($\it uvby$)&$\beta$&$\sigma$&$N$($\beta$)\\ \hline EW~Ori & G0~V\tablefootmark{a} & C10 & 9.902 & 7& 0.390 & 5& 0.186 & 8& 0.364 &10&324 & 2.613 & 8 &25\\ & & C10 &10.510 & 7& 0.379 & 5& 0.181 & 4& 0.369 & 4& 4 & & & \\ & & HH75 & 9.905 & 7& 0.387 & 5& 0.201 & 1& 0.350 &10& 2 & & & \\ & & L02 & 9.924 & & 0.407 & & 0.175 & & 0.353 & & 1 & 2.629 & & 1\\ \hline\noalign{\smallskip} HD 34658 & F3~III/IV\tablefootmark{b} & C10 & 5.334 & 5& 0.258 & 3& 0.196 & 5& 0.668 & 6&180 & 2.691 & 4 &15\\ & & SP65 & & & 0.268 & & 0.177 & & 0.682 & & 2 & & & \\ & & C66 & & & & & & & & & & 2.685 & & 7\\ & & GO7677 & 5.334 & 2& 0.260 & 2& 0.189 & 3& 0.671 & 5& 4 & 2.685 & 6 & 3\\ & & AF90 & 5.326 &12& 0.263 &20& 0.184 &18& 0.659 &23& 2 & 2.676 & 3 & 2\\ \hline\noalign{\smallskip} HD 34745 & F7~V\tablefootmark{b} & C10 & 6.999 & 6& 0.343 & 4& 0.171 & 7& 0.363 & 8&236 & 2.618 & 8 &17\\ & & O83 & 6.998 & 6& 0.351 & 1& 0.168 & 5& 0.360 & 1& 2 & & & \\ & & O94 & 7.008 & 4& 0.350 & 3& 0.157 & 4& 0.367 & 5& 1 & 2.614 & 6 & 1\\ \hline\noalign{\smallskip} HD 35638 & F5~V\tablefootmark{b} & C10 & 7.645 & 6& 0.290 & 4& 0.164 & 7& 0.420 & 8&172 & 2.651 & 8 &16\\ & & O83 & 7.648 & 5& 0.297 & 3& 0.158 & 2& 0.417 & 1& 2 & & & \\ & & O94 & 7.653 & 5& 0.295 & 3& 0.151 & 4& 0.430 & 6& 1 & 2.648 & 6 & 1\\ \hline \end{tabular} \tablefoot {For EW~Ori, the ${\it uvby}\beta$ information by C10 (first line), HH75, and L02 is the mean value outside eclipses. For C10 (second line) indices during the total part of secondary eclipse are included. \\ $N$ is the total number of observations used to form the mean values, and~$\sigma$ is the rms error (per observation) in~mmag. \\ \tablefoottext{a}{Popper et~al. (\cite{plft86}); spectral type of the primary component;} \tablefoottext{b}{Houk \& Swift (\cite{houk99}).}} \vspace*{-3mm} \tablebib {AF90 = Arellano Ferro et~al. (\cite{af90}), C10~= this paper, C66~= Crawford et~al. (\cite{c66}), GO7677~= Gr{\o}nbech \& Olsen (\cite{go76}, \cite{go77}) (revised catalogue), HH75~= Hilditch \& Hill (\cite{hh75}), L02~= Lacy (\cite{l02}), O83~= Olsen (\cite{olsen83}), O94~= $\it uvby$: Olsen (\cite{olsen94}), $\beta$: Olsen (unpublished), SP65~= Str\"omgren \& Perry (\cite{sp2}).} \vspace*{3mm} \end{table}