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\IBVShead{5707}{19 June 2006}

\IBVStitle{New Times of Minima of Some Eclipsing Binary Stars}

\IBVSauth{Do\v{g}ru, S. S.; Do\v{g}ru, D.; Erdem, A.; \c{C}i\c{c}ek, C.; Demircan, O.}

\IBVSinsto{\c{C}anakkale Onsekiz Mart University Observatory,
Terzio\v{g}lu Campus, TR-17100, \c{C}anakkale, Turkey;
e-mail: dogru@comu.edu.tr}


\begintext

\IBVSEobs{ 30-cm Cassegrain-Schmidt telescope of the \c{C}anakkale
University
Observatory, (\c{C}UG301)\\
30-cm Cassegrain-Schmidt telescope of the \c{C}anakkale University
Observatory, (\c{C}UG302)}

\IBVSEdet{-ST10XME camera, Peltier cooling, KAF 3200ME chip,
$17\arcm \times 12\arcm$ FOV, 2184 $\times$ 1472 pixels. \\
& -ST237 camera, Peltier cooling, TC237 chip, $11\arcm \times
8\arcm$ FOV, 640 $\times$ 480 pixels. \\
}

\IBVSEred{Reduction of the CCD frames was made with
C-MUNIPACK\footnotemark\ software.}

\footnotetext[1]{Motl, D., 2004, C-MUNIPACK, {\tt
http://integral.sci.muni.cz/cmunipack/}}


\IBVSEmethod{Kwee -- van Woerden method (Kwee \& van Woerden,
1956).}


{\normalsize
\IBVSEmins{
HL~Aur       & 53787.3073 &  0.0001  & I    & V      & \c{C}UG301 \\
TU Boo       & 53862.4745 &  0.0002  & I    & C      & \c{C}UG302 \\
TY~Boo       & 53787.5077 &  0.0002  & I    & V      & \c{C}UG301 \\
             & 53850.4615 &  0.0001  & II   & C      & \c{C}UG302 \\
             & 53862.5131 &  0.0003  & II   & C      & \c{C}UG302 \\
TZ Boo       & 53862.5218 &  0.0005  & I    & C      & \c{C}UG302 \\
AC Boo       & 53862.5157 &  0.0002  & I    & C      & \c{C}UG302 \\
CV Boo       & 53849.3996 &  0.0002  & II   & C      & \c{C}UG302 \\
EF~Boo       & 53789.3134 &  0.0002  & II   & V      & \c{C}UG301 \\
RW Com       & 53827.38402&  0.00007 & I    & V      & \c{C}UG301 \\
             & 53845.3034 &  0.0001  & II   & C      & \c{C}UG302 \\
             & 53863.3379 &  0.0002  & II   & C      & \c{C}UG302 \\
RZ Com       & 52849.4809 &  0.0006  & II   & C      & \c{C}UG302 \\
             & 53863.3564 &  0.0002  & II   & C      & \c{C}UG302 \\
CC Com       & 53850.36952 & 0.00005 & I    & C      & \c{C}UG302 \\
RZ~Dra       & 53590.3784 &  0.0001  & I    & V      & \c{C}UG301 \\
AX Dra       & 53800.3190 &  0.0002  & I    & V      & \c{C}UG301 \\
BW~Dra       & 53601.4952 &  0.0003  & I    & V      & \c{C}UG301 \\
EM~Lac       & 53590.4866 &  0.0003  & II   & V      & \c{C}UG301 \\
V502 Oph     & 53863.4527 &  0.0002  & II   & C      & \c{C}UG302 \\
FZ~Ori       & 53771.2680 &  0.0002  & I    & BVR    & \c{C}UG301 \\
XZ UMa       & 53800.5090 &  0.0002  & I    & V      & \c{C}UG301 \\
AW~Vir       & 53787.4543 &  0.0001  & II   & V      & \c{C}UG301 \\
} }

\IBVSErem{We present 23 minima times of 18 eclipsing binaries. In
the Remarks column of Times of Minima table, telescopes used in the
observations are given.}

\IBVSEack{This work was partly supported by the Research Found of
\c{C}anakkale Onsekiz Mart University.}


\reference

Kwee, K. K., \& van Woerden, H., 1956, {\it Bull.\ Astron.\ Inst.\
Neth.}, {\bf 12}, 327.

\endreferences

\vfill
%From: IBVS 5745
\IBVSerratum{5707}

Time of minimum of RZ~Com was given as 52849.4809, but it should be
53849.4809.

\bigskip

\emph{S. Serkan Do\v{g}ru}


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