\documentstyle[twoside, epsf]{article}

\input ibvs2.sty
\input ibvse.sty

\begin{document}
\IBVShead{5694}{4 April 2006}

\IBVStitletl{New CCD Times of Minima of Eclipsing Binary Systems}

\IBVSauth{Kim, Chun-Hwey$^1$; Lee, Chung-Uk$^{1,2}$; Yoon, Yo-Na$^{1,2}$; Park, Sung-Soo$^1$; Kim, Duk-Hyon$^{1,2}$; Cha, Sang-Mok$^{1,2}$; Won, Jang-Hee$^1$}

\IBVSinst{Department of Astronomy and Space Sciences, College of Natural Science and Institute for Basic Science
Research, Chungbuk National University, Cheongju, 361-763, Korea;\\ e-mail: kimch@chungbuk.ac.kr}
\IBVSinst{Korea Astronomy Observatory, Taejeon 305-348, Korea}

\SIMBADobj{AA And}
\SIMBADobj{BD And}
\SIMBADobj{BL And}
\SIMBADobj{BX And}
\SIMBADobj{CO And}
\SIMBADobj{CP And}
\SIMBADobj{EP And}
\SIMBADobj{GZ And}
\SIMBADobj{OO Aql}
\SIMBADobj{RX Ari}
\SIMBADobj{AH Aur}
\SIMBADobj{V534 Aur}
\SIMBADobj{HL Aur}
\SIMBADobj{HP Aur}
\SIMBADobj{IM Aur}
\SIMBADobj{SX Aur}
\SIMBADobj{AC Boo}
\SIMBADobj{TZ Boo}
\SIMBADobj{XY Boo}
\SIMBADobj{CV Boo}
\SIMBADobj{SV Cam}
\SIMBADobj{UU Cam}
\SIMBADobj{WW Cam}
\SIMBADobj{AL Cam}
\SIMBADobj{AV Cam}
\SIMBADobj{AW Cam}
\SIMBADobj{AZ Cam}
\SIMBADobj{TX Cnc}
\SIMBADobj{WX Cnc}
\SIMBADobj{TW Cas}
\SIMBADobj{TX Cas}
\SIMBADobj{ZZ Cas}
\SIMBADobj{AB Cas}
\SIMBADobj{AL Cas}
\SIMBADobj{BS Cas}
\SIMBADobj{BU Cas}
\SIMBADobj{CW Cas}
\SIMBADobj{DN Cas}
\SIMBADobj{DO Cas}
\SIMBADobj{V380 Cas}
\SIMBADobj{V445 Cas}
\SIMBADobj{V523 Cas}
\SIMBADobj{V541 Cas}
\SIMBADobj{V651 Cas}
\SIMBADobj{VW Cep}
\SIMBADobj{VZ Cep}
\SIMBADobj{WY Cep}
\SIMBADobj{DV Cep}
\SIMBADobj{EG Cep}
\SIMBADobj{GK Cep}
\SIMBADobj{GW Cep}
\SIMBADobj{NN Cep}
\SIMBADobj{SU Cep}
\SIMBADobj{CC Com}
\SIMBADobj{EK Com}
\SIMBADobj{TW CrB}
\SIMBADobj{BR Cyg}
\SIMBADobj{Z Dra}
\SIMBADobj{RZ Dra}
\SIMBADobj{TZ Dra}
\SIMBADobj{AR Dra}
\SIMBADobj{AX Dra}
\SIMBADobj{BE Dra}
\SIMBADobj{BS Dra}
\SIMBADobj{BW Dra}
\SIMBADobj{BV Dra}
\SIMBADobj{SX Gem}
\SIMBADobj{SZ Her}
\SIMBADobj{AK Her}
\SIMBADobj{V359 Her}
\SIMBADobj{XZ Leo}
\SIMBADobj{CE Leo}
\SIMBADobj{SX Lyn}
\SIMBADobj{UV Lyn}
\SIMBADobj{TZ Lyr}
\SIMBADobj{FL Lyr}
\SIMBADobj{FZ Ori}
\SIMBADobj{RT Per}
\SIMBADobj{DK Per}
\SIMBADobj{DM Per}
\SIMBADobj{IQ Per}
\SIMBADobj{KW Per}
\SIMBADobj{LS Per}
\SIMBADobj{V432 Per}
\SIMBADobj{DV Psc}
\SIMBADobj{CU Sge}
\SIMBADobj{RZ Tau}
\SIMBADobj{AH Tau}
\SIMBADobj{CT Tau}
\SIMBADobj{GR Tau}
\SIMBADobj{V781 Tau}
\SIMBADobj{RV Tri}
\SIMBADobj{W UMa}
\SIMBADobj{XY UMa}
\SIMBADobj{ZZ UMa}
\SIMBADobj{AA UMa}
\SIMBADobj{W UMi}
\SIMBADobj{RU UMi}
\SIMBADobj{DL Vir}
\SIMBADobj{AW Vul}
\SIMBADobj{GP Vul}

\IBVStyp{  Binaries: eclipsing  }
\IBVSkey{CCD photometry}

\IBVSabs{We present a total of 208 CCD timings for 103 eclipsing binaries. }

\begintext

\IBVSEobs{Chungbuk National University Observatory (CBNUO): 14-inch $f/11$ Schmidt--Cassegrain tube
on a Paramount GT-1100s mount}


\IBVSEdet{
 SBIG ST-8 CCD camera, $f/7$ focal reducer, $19' \times 12'$ FOV  }

\IBVSEred{Reduction of all CCD frames was made with
a customly developed IRAF\footnotemark \, package.}

\footnotetext{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}

\IBVSEmethod{Times of minimum light were computed
with the Kwee-van Woerden method (Kwee \& van Woerden 1956).}

{\small
\IBVSEmins{
\multicolumn{6}{|l|}{}\\
AA And &   52929.0038 & 2 & I & $V$ & \\
       &   52949.1039 & 23& II& $V$ & \\
       &   52950.0489 & 9 & II& $V$ & \\
BD And &   53345.1917 & 2 & I & $-$ & \\
       &   53347.0419 & 1 & I & $-$ & \\
       &   53347.9676 & 1 & I & $-$ & \\
       &   53352.1361 & 4 & I & $-$ & \\
       &   53638.2096 & 1 & I & $-$ & \\
       &   53675.2413 & 1 & I & $-$ & \\
       &   53690.0535 & 2 & I & $-$ & \\
       &   53696.0723 & 6 & I & $-$ & \\
       &   53696.9980 & 2 & I & $-$ & \\
BL And &   52947.1761 & 5 & I & $-$ & \\
BX And &   53307.2186 & 3 & I & $-$ & \\
       &   53323.9965 & 1 & I & $-$ & \\
CO And &   53302.0420 & 2 & I & $-$ & \\
CP And &   53674.2847 & 3 & I & $-$ & \\
EP And &   53310.2549 & 4 & I & $-$ & \\
GZ And &   53309.0268 & 6 & I & $-$ & \\
OO Aql &   52904.1768 & 2 & I & $-$ & \\
RX Ari &   52911.2006 & 2 & I & $-$ & \\
       &   52923.0394 & 22& II& $-$ & \\
AH Aur &   52654.0523 & 4 & I & $V$ & \\
       &   53453.0208 & 1 & I & $-$ & \\
V534 Aur & 52654.0041 & 5 & I & $V$ & \\
HL Aur &   53375.2080 & 1 & I & $-$ & \\
HP Aur &   53436.02843& 6 & I & $-$ & \\
IM Aur &   53366.9627 & 6 & II& $-$ & \\
SX Aur &   52923.2405 & 8 & II& $-$ & \\
       &   53432.0841 & 2 & I & $-$ & \\
AC Boo &   52764.2895 & 1 & I & $-$ & \\
       &   52771.1622 & 2 & II& $-$ & \\
       &   53492.9818 & 8 & II& $-$ & \\
       &   53509.1857 & 3 & II& $-$ & \\
TZ Boo &   53428.2224 & 2 & I & $-$ & \\
       &   53509.0476 & 5 & I & $-$ & \\
XY Boo &   53483.0532 & 1 & II& $-$ & \\
CV Boo &   53511.02437& 6 & I & $-$ & \\
SV Cam &   53331.00654& 9 & I & $-$ & \\
       &   53333.9720 & 2 & I & $-$ & \\
       &   53415.2239 & 3 & I & $-$ & \\
       &   53484.0196 & 1 & I & $-$ & \\
       &   53691.0038 & 6 & I & $-$ & \\
UU Cam &   53450.0349 & 4 & I & $-$ & \\
WW Cam &   53434.1063 & 3 & I & $-$ & \\
AL Cam &   53326.18745& 7 & I & $-$ & \\
AV Cam &   53667.2011 & 7 & I & $-$ & \\
AW Cam &   52687.0950 & 1 & II& $-$ & \\
       &   53302.2444 & 1 & I & $-$ & \\
       &   53384.0069 & 1 & I & $-$ & \\
}

{\small \IBVSEmins{
\multicolumn{6}{|l|}{}\\
AZ Cam &   52709.2692 & 2 & I & $-$ & \\
       &   52793.0362 & 1 & I & $-$ & \\
       &   53333.2630 & 2 & I & $-$ & \\
       &   53494.2091 & 3 & I & $-$ & \\
TX Cnc &   52711.9677 & 2 & II& $-$ & \\
       &   53422.9820 & 3 & II& $-$ & \\
WX Cnc &   53492.0290 & 4 & I & $-$ & \\
TW Cas &   53404.96907& 9 & I & $-$ & \\
TX Cas &   53413.999  & 2 & I & $-$ & \\
ZZ Cas &   53388.0081 & 2 & II& $-$ & \\
AB Cas &   53305.0782 & 2 & I & $-$ & \\
AL Cas &   52944.2483 & 3 & I & $-$ & \\
       &   52950.2548 & 2 & I & $-$ & \\
       &   53334.1833 & 2 & I & $-$ & \\
       &   53347.1970 & 1 & I & $-$ & \\
       &   53663.0499 & 4 & I & $-$ & \\
       &   53667.0542 & 1 & I & $-$ & \\
       &   53670.0583 & 6 & I & $-$ & \\
BS Cas &   53638.0055 & 1 & I & $-$ & \\
       &   53667.9583 & 3 & I & $-$ & \\
BU Cas &   53686.2859 & 3 & I & $-$ & \\
CW Cas &   52939.2389 & 1 & II& $-$ & \\
       &   53318.2059 & 1 & I & $-$ & \\
DN Cas &   53314.2254 & 5 & II& $-$ & \\
DO Cas &   52686.9869 & 1 & I & $-$ & \\
       &   52904.0261 & 3 & I & $-$ & \\
       &   53310.0345 & 5 & I & $-$ & \\
       &   53342.2138 & 2 & I & $-$ & \\
V380 Cas & 53700.2809 & 3 & I & $-$ & \\
V445 Cas & 53640.0067 & 2 & I & $-$ & \\
V523 Cas & 52910.0360 & 1 & I & $-$ & \\
         & 53369.00991& 4 & I & $-$ & \\
         & 53369.12641& 6 & II& $-$ & \\
         & 53669.1890 & 1 & II& $-$ & \\
         & 53669.3070 & 3 & I & $-$ & \\
V541 Cas & 53330.2640 & 1 & I & $-$ & \\
V651 Cas & 53640.2400 & 3 & I & $-$ & \\
VW Cep &   52760.2534 & 1 & I & $-$ & \\
       &   53313.9518 & 6 & II& $-$ & \\
       &   53314.0924 & 3 & I & $-$ & \\
       &   53316.0408 & 4 & I & $-$ & \\
       &   53316.1783 & 4 & II& $-$ & \\
VZ Cep &   53366.0195 & 2 & I & $-$ & \\
WY Cep &   52837.1523 & 1 & I & $-$ & \\
DV Cep &   52931.1107 & 1 & I & $-$ & \\
       &   53325.02105& 7 & I & $-$ & \\
       &   53484.21172& 9 & I & $-$ & \\
       &   53704.98701& 8 & I & $-$ & \\
EG Cep &   52717.2809 & 1 & I & $-$ & \\
       &   52744.2396 & 2 & II& $-$ & \\
}

{\small \IBVSEmins{
\multicolumn{6}{|l|}{}\\
EG Cep &   52757.3094 & 3 & II& $-$ & \\
       &   52769.2918 & 2 & II& $-$ & \\
       &   52776.1003 & 4 & I & $-$ & \\
       &   53329.98078& 9 & I & $-$ & \\
       &   53510.25101& 9 & I & $-$ & \\
       &   53683.98597& 8 & I & $-$ & \\
GK Cep &   52912.2368 & 3 & I & $-$ & \\
       &   52919.2645 & 13 & II& $-$ & \\
GW Cep &   53322.2222 & 1 & I & $-$ & \\
       &   53378.01792& 8 & I & $-$ & \\
       &   53378.17693& 8 & II& $-$ & \\
       &   53378.33681& 8 & I & $-$ & \\
       &   53380.2497 & 2 & I & $-$ & \\
       &   53385.9887 & 5 & I & $-$ & \\
       &   53407.98776& 7 & I & $-$ & \\
       &   53619.05443& 6 & I & $-$ & \\
NN Cep &   52935.1430 & 3 & II& $-$ & \\
SU Cep &   53326.03819& 6 & I & $-$ & \\
CC Com &   52800.01649& 5 & I & $-$ & \\
       &   53460.1993 & 1 & I & $-$ & \\
       &   53460.3101 & 1 & II& $-$ & \\
EK Com &   53401.2687 & 1 & I & $-$ & \\
       &   53473.2735 & 7 & II& $ $ & \\
       &   53474.0735 & 1 & I & $-$ & \\
TW CrB &   53448.1887 & 3 & I & $-$ & \\
BR Cyg &   53499.2292 & 1 & I & $-$ & \\
       &   53495.23149& 6 & I & $-$ & \\
Z Dra  &   53428.00202& 2 & I & $-$ & \\
       &   53482.29943& 4 & I & $-$ & \\
RZ Dra &   53464.22773& 7 & I & $-$ & \\
       &   53475.2454 & 2 & I & $-$ & \\
       &   53641.05893& 8 & I & $-$ & \\
TZ Dra &   53466.27003& 7 & I & $-$ & \\
AR Dra &   53384.2775 & 1 & I & $-$ & \\
       &   53443.0753 & 1 & I & $-$ & \\
AX Dra &   53456.0073 & 1 & I & $-$ & \\
       &   53459.98414& 7 & I & $-$ & \\
       &   53474.18777& 6 & I & $-$ & \\
       &   53487.2564 & 2 & I & $-$ & \\
BE Dra &   53456.2452 & 3 & I & $-$ & \\
       &   53469.3077 & 3 & I & $-$ & \\
BS Dra &   53333.0237 & 2 & I & $-$ & \\
       &   53692.97265& 8 & I & $-$ & \\
BV Dra &   52717.0030 & 1 & I & $-$ & \\
       &   52717.1784 & 1 & II& $-$ & \\
BW Dra &   52717.1309 & 1 & I & $-$ & \\
SX Gem &   52709.01784& 6 & II& $-$ & \\
SZ Her &   52864.0214 & 2 & II& $-$ & \\
AK Her &   52734.2157 & 2 & I & $-$ & \\
       &   52795.1275 & 2 & II& $-$ & \\
}

{\small \IBVSEmins{
\multicolumn{6}{|l|}{}\\
V359 Her & 52718.2410 & 2 & II& $-$ & \\
XZ Leo &   53421.26869& 7 & I & $-$ & \\
CE Leo &   53450.2847 & 1 & I & $-$ & \\
SX Lyn &   53405.9336 & 26& I & $-$ & \\
UV Lyn &   53422.3014 & 3 & I & $-$ & \\
TZ Lyr &   53477.27155& 6 & I & $-$ & \\
FL Lyr &   52911.0235 & 4 & I & $-$ & \\
FZ Ori &   52957.2938 & 7 & I & $-$ & \\
RT Per &   53686.97209& 6 & I & $-$ & \\
DK Per &   53299.1241 & 5 & II& $-$ & \\
DM Per &   53306.0503 & 2 & I & $-$ & \\
IQ Per &   52594.9767 & 4 & I & $V$ & \\
       &   52601.0264 & 6 & II& $V$ & \\
       &   52601.9503 & 5 & I & $V$ & \\
       &   52606.2572 & 5 & II& $V$ & \\
       &   53329.0185 & 1 & I & $-$ & \\
KW Per &   53328.01223& 9 & I & $-$ & \\
       &   53690.2701 & 5 & I & $-$ & \\
LS Per &   53335.0314 & 8 & I & $-$ & \\
V432 Per & 53317.2568 & 2 & I & $-$ & \\
         & 53686.00387& 7 & I & $-$ & \\
         & 53689.0702 & 1 & I & $-$ & \\
         & 53693.28634& 8 & I & $-$ & \\
DV Psc &   52920.0394 & 1 & I & $-$& \\
       &   52920.1955 & 3 & II& $-$& \\
       &   52920.9653 & 5 & I & $-$& \\
       &   52921.2735 & 1 & I & $-$& \\
CU Sge &   52933.9727 & 3 & I & $-$& \\
RZ Tau &   52580.20673& 6 & I & $-$& \\
AH Tau &   52947.27886& 7 & II& $-$& \\
CT Tau &   53356.2366 & 1 & I & $-$& \\
GR Tau &   53348.9474 & 3 & I & $-$& \\
       &   53351.9559 & 2 & I & $-$& \\
V781 Tau & 52712.0279 & 6 & II& $-$& \\
         & 53362.0065 & 1 & I & $-$& \\
RV Tri &   53676.2181 & 1 & I & $-$& \\
       &   53683.00102& 5 & I & $-$& \\
W UMa &    52687.1720 & 1 & II& $-$& \\
      &    53414.99501& 7 & I & $-$& \\
      &    53420.0002 & 2 & I & $-$& \\
      &    53425.0045 & 1 & I & $-$& \\
      &    53425.1715 & 2 & II& $-$& \\
      &    53459.0344 & 8 & I & $-$& \\
      &    53461.0366 & 5 & I & $-$& \\
XY UMa &   52726.1693 & 1 & I & $-$& \\
       &   53328.2676 & 1 & I & $-$& \\
       &   53683.1991 & 2 & I & $-$& \\
ZZ UMa &   53352.2813 & 1 & I & $-$& \\
AA UMa &   53433.28029& 5 & I & $-$& \\
       &   53503.0298 & 4 & I & $-$& \\
}

{\small \IBVSEmins{
\multicolumn{6}{|l|}{}\\
AA UMa &   53510.0508 & 2 & I & $-$& \\
W UMi  &   53543.1916 & 2 & I & $-$& \\
       &   53680.9835 & 4 & I & $-$& \\
RU UMi &   53492.2019 & 1 & I & $-$& \\
       &   53493.25151& 2 & I & $-$& \\
DL Vir &   52726.27194& 6 & I & $-$& \\
AW Vul &   53511.26086& 8 & I & $-$& \\
GP Vul &   52947.9597 & 3 & I & $-$& \\
}
}
\large

\IBVSErem{
We present a total of 208 CCD timings for 103 eclipsing binaries
which have been observed with a semi-automatic 35cm telescope at
the Campus site of the Chungbuk National University Observatory,
South Korea. The telescope equipped with a SBIG ST-8
camera has been recently established to observe systematically times
of minimum light of eclipsing binaries since November, 2002. \\
Most of the stars in the table are members listed in the Atlas of Kreiner et al. (2001).
Updated ephemeris for V534 Aur, which was recently discovered by
Han et al. (2000), is as follows:\\
$Min. I = {\rm HJD}2451570.2412(3) + 4.{\rm ^d} 2836529(18) \textit{E}.$
}

\IBVSEack{This work was supported by Korea Research Foundation Grants (KRF-2002-015-CPO150, KRF-2005-015-C00188 )}

\references

Han, J. Y., Lee, J. W., Kim, H. I., Han, W., \& Kim, C.-H. 2000, {\it IBVS}, 4908

Kreiner, J. M., Kim, C.-H., \& Nha, I.-S. 2001, {\it An Atlas of (O-C) Diagrams of
Eclipsing Binary Stars} (Krakow: Wydawn. Nauk. Akad. Pedagogicznej)

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

\end{document}
