\documentstyle[twoside, epsf]{article}

\input ibvs2.sty
\input ibvse.sty

\begin{document}
\IBVShead{5372}{7 February 2003}

\IBVStitle{New Times of Minima of Eclipsing Binary Systems}

\IBVSauth{Heged\"us, T.$^1$; Borkovits, T.$^1$;  B\'ir\'o, I. B.$^1$; Dem\.{i}rcan, O.$^{2}$; Erdem, A.$^{2}$; \c{C}\.{i}\c{c}ek, C.$^{2}$; \"Ozdem\.{i}r, S.$^{2}$; Bulut, \.{I}.$^{2}$; Soydugan, F.$^{2}$; Soydugan, E.$^{2}$; De\u{g}\.{i}rmenc\.{i}, \"{O}. L.$^{3}$; Bozkurt, Z.$^{3}$; Yakut, K.$^{3}$; Eseno\u{g}lu, H.$^{4}$; Szettele, I.$^{5,6}$}

 \IBVSinst{Baja Astronomical Observatory  of B\'acs-Kiskun County, Baja, Szegedi \'ut, P.O. Box 766, H--6500 Hungary;\\ e-mail: hege@electra.bajaobs.hu}

 \IBVSinst{\c{C}anakkale Onsekiz Mart University, Faculty of Arts and  Sciences, Department of Physics,\\ TR-17100 \c{C}anakkale, Turkey; e-mail: aerdem@bornova.ege.edu.tr}

 \IBVSinst{Ege University Observatory, TR-35100 Bornova, \.{I}zmir,  Turkey; e-mail: omerd@astronomy.sci.ege.edu.tr}

 \IBVSinst{\.{I}stanbul University Observatory, TR-34452 \.{I}stanbul, Turkey; e-mail: esenoglu@istanbul.edu.tr}

 \IBVSinst{Department of Astronomy, E\"otv\"os L\'or\'and University, Budapest, P.O. Box 32, H-1518 Hungary}

 \IBVSinst{On summer training at Baja Astronomical Observatory}


\SIMBADobj{V397 Cep}
\SIMBADobj{V442 Cyg}
\SIMBADobj{MR Del}
\SIMBADobj{V401 Lac}
\SIMBADobj{V402 Lac}
\SIMBADobj{V1123 Tau}
\SIMBADobj{V1128 Tau}

\IBVStyp{ Binaries: eclipsing   }
\IBVSkey{Photoelectric photometry}
\IBVSabs{We present several photoelectric minima observations of 7}
\IBVSabs{eclipsing binaries.}


\begintext

\vspace*{-1cm}
\IBVSEobs{50-cm $f/8.4$ Ritchey--Chr\'etien telescope of the Baja Astronomical Observatory, Hungary (BA50)\\
40-cm Cassegrain telescope of the TUBITAK National Observatory, Turkey (TUG40)\\
30-cm Cassegrain telescope of Ege University Observatory, Turkey (EGE30)}

\vspace*{-0.34cm}
\IBVSEdet{Hamamatsu, R 4457 PMT at TUBITAK National Observatory\\
& Hamamatsu, R 4457 PMT at Ege University Observatory\\
& Apogee Ap-7 SiTE 502B CCD at Baja Astronomical Observatory}

\vspace*{-0.34cm}
\IBVSEred{Reduction of the CCD frames was made with a customly developed
IRAF\IBVSfm \, package.}

\IBVSfoot{IRAF is distributed by the National Optical Astronomical
Observatories, operated by the Association of the Universities for
Research in Astronomy, inc., under cooperative agreement with the
National Science Foundation}

\vspace*{-0.34cm}
\IBVSEmethod{The minima times were computed
with parabolic fitting, and in some cases with linearized
Pogson-method or Kwee-van Woerden method (Kwee \& van Woerden, 1956).}

\vspace*{-0.34cm}
{\small
\IBVSEstars{V397 Cep & EA & 00 03 24 & +73 10 28 & BD+72$\deg$ 1135 & 48501.1800 & 2.08684 & 1 \\
V442 Cyg & EA & 20 27 52 & +30 47 28 & GSC 2685-1364 & 44919.561 & 2.3859437 & 2 \\
MR Del & EA & 20 31 13 & +05 13 09 & HD 195235 & 51744.37964 & 0.52168929 & 3 \\
V401 Lac & EA & 22 08 21 & +49 13 16 & BD+48$\deg$ 3613 & 48501.7900 & 1.95010 & 1 \\
V402 Lac & EA & 22 09 15 & +44 50 47 & GSC 3210-1215 & 48500.980 & 3.7820 & 1 \\
V1123 Tau & EB & 03 34 59 & +17 42 38 & GSC 1238-0661 & 48500.3570 & 0.399957 & 1 \\
V1128 Tau & EB & 03 49 28 & +12 54 44 & GSC 0664-1304 & 48500.0620 & 0.3053732 & 1\\} }

\IBVSEsource{
1. ESA, 1997 \\
2. Lacy and Frueh, 1987 \\
3. Soydugan et al., 2002 }


{\small
\IBVSEmin{V397 Cep & 51727.4294 & 12 &  I & $U,B,V$ & $-0.0052$ & TUG40 \\
& 51747.4065 & 8 & II & $U,B,V$ & $0.1469$ & TUG40 \\
& 51752.471 & 1 &  I & $-$ & $-0.006$ & Bor+SzI/BA50 \\
& 51800.4655 & 2 &  I & $-$ & $-0.0085$ & B\'\i r/BA50 \\
& 51843.4053 & 1 & II & $-$ & $0.1510$ & Bor/BA50 \\
& 51845.48217 & 1 & II & $-$ & $0.14107$ & B\'\i r/BA50  \\
& 51850.5486 & 17 &  I & $U,B,V$ & $-0.0096$ & TUG40 \\
V442~Cyg & 51780.3424 & 2 & II & $-$ & $0.0003$ & Bor/BA50 \\
MR~Del & 51739.4231 & 16 & II & $B,V,R$ & $-0.0005$ & TUG40 \\
& 51744.3804 & 8 &  I & $B,V,R$ & $0.0008$ & TUG40 \\
& 51781.4196 & 4 &  I & $-$ & $0.0000$ & Bor/BA50 \\
& 51822.3719 & 4 & II & $-$ & $-0.0003$ & B\'\i r/BA50 \\
& 52130.4291 & 9 &  I & $B,V,R$ & $-0.0006$ & EGE30 \\
& 52135.3863 & 8 & II & $B,V,R$ & $0.0005$ & EGE30 \\
V401~Lac & 51842.3465 & 2 &  I & $-$ & $0.0035$ & B\'\i r/BA50 \\
V402~Lac & 51839.3033 & 1 & II & $-$ & $0.7083$ & B\'\i r/BA50 \\
V1123 Tau & 51832.5518 & 5 & II & $-$ & $-0.0470$ & B\'\i r/BA50 \\
& 51837.3523 & 5 & II & $-$ & $-0.0459$ & Bor/BA50 \\
& 51877.5481 & 1 &  I & $-$ & $-0.0458$ & Heg/BA50 \\
V1128 Tau & 51822.5237 & 2 &  I & $-$ & $0.0013$ & B\'\i r/BA50 \\
& 51830.4633 & 4 &  I & $-$ & $0.0012$ & B\'\i r/BA50 \\
& 51830.6165 & 4 & II & $-$ & $0.0017$ & B\'\i r/BA50 \\
}
}

\IBVSEremexp{Observer(s) (only at Baja Observatory)/Instrument}


\IBVSEack{These observations were performed under the joint
campaign of the Baja Astronomical Observatory, \c{C}anakkale
Onsekiz Mart University Ulupinar Astrophysics Observatory, Ege
University Observatory and \.{I}stanbul University Observatory in
2000/2001. This work was partly supported by Hungarian National
Grant OTKA T030743 and T034551 and \c{C}anakkale Onsekiz Mart
University Research Found. Turkish authors acknowledge the
observing time at the TUBITAK National Observatory. This research
has made use of the SIMBAD database, operated at CDS, Strasbourg,
France }

\references


ESA, 1997, {\it The Hipparcos and Tycho Catalogues, SP-1200}

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

Lacy, C. H., Frueh, M. L., 1987, {\it Astron. J.}, {\bf 94}, 712

Soydugan, F., Erdem, A., Demircan, O., Soydugan, E. et al., 2002,
{\it in XIII. National Astronomy Meeting}, 02-06 September 2002,
Antalya, Turkey, in press.

\endreferences


\end{document}
