\documentstyle[twoside]{article}

\input ibvs2.sty
\input ibvse.sty

\begin{document}
\IBVShead{5220}{16 January 2002}

\IBVStitletl{CCD Minima of selected binary stars in 2001}

\IBVSauth{Baldinelli, Luigi;  Maitan, Alessandro}
\IBVSinsto{Paolo Pizzinato Astronomical Observatory, Bologna, Italy\\ \indent e-mail: a.maitan@mclink.it}

\SIMBADobj{AD And}
\SIMBADobj{DD Aqr}
\SIMBADobj{TW CrB}
\SIMBADobj{AE Cyg}
\SIMBADobj{CG Cyg}
\SIMBADobj{DK Cyg}
\SIMBADobj{V387 Cyg}
\SIMBADobj{V456 Cyg}
\SIMBADobj{WZ Cyg}
\SIMBADobj{TT Her}
\SIMBADobj{V839 Oph}
\SIMBADobj{BN Peg}
\SIMBADobj{BX Peg}
\SIMBADobj{BU Vul}


\IBVStyp{   Binaries: eclipsing   }
\IBVSkey{CCD photometry}
\IBVSabs{We present CCD minima observations of 13 eclipsing binaries.}

\begintext

\IBVSEobs{40-cm $f/5$ Newton telescope of the Paolo Pizzinato Private Astronomical Observatory (Bologna, Italy)}

\IBVSEdet{HiSis-23 CCD camera, thermoelectrically cooled, KAF-400 chip, unfiltered}

\IBVSEred{Reduction of the CCD frames was made with Astroart\footnotemark \, package.}

\footnotetext{Astroart is a copyright by MSB Software.}

\IBVSEmethod{The minima times were computed
with Kwee-van Woerden (1956) method using a
separate software available on the World Wide Web.}

{\small
\IBVSEstars{AD And & EW & 23 36 44 & +48 40 19 &  & 43045.856 & 0.98619023 & 1 \\
DD Aqr & EB & 22 45 52 & +01 02 54 &  & 28395.162 & 0.7210107 & 1 \\
TW CrB & EB & 16 06 51 & +29 16 01 &  & 43295.3925 & 0.58887477 & 1 \\
WZ Cyg & EB & 20 53 06 & +38 49 42 &  & 48073.4680 & 0.5844691 & 1 \\
AE Cyg & EA & 21 13 14 & +30 44 25 &  & 44586.229 & 0.96918718 & 1 \\
CG Cyg & RS & 20 58 13 & +35 10 28 &  & 45892.442 & 0.6311435 & 1 \\
DK Cyg & EW & 21 35 02 & +34 35 44 &  & 49918.4467 & 0.47069290 & 1 \\
V387 Cyg & EA & 21 15 36 & +37 30 02 &  & 50333.312 & 0.6405964 & 1 \\
V456 Cyg & EA & 20 28 50 & +39 09 15 &  & 48768.457 & 0.8911966 & 1 \\
TT Her & EB & 16 54 23 & +16 50 12 &  & 48839.4108 & 0.91207944 & 1 \\
V839 Oph & EW & 18 09 21 & +09 09 06 &  & 49536.3915 & 0.40900516 & 1 \\
BN Peg & EA & 21 28 02 & +05 00 13 &  & 50003.3540 & 0.713298 & 1 \\
BX Peg & EW & 21 38 53 & +26 42 23 &  & 48174.5310 & 0.28041747 & 1 \\
BU Vul & EA & 20 46 18 & +28 15 44 &  & 50681.434 & 0.56899379 & 1 \\
}
}
\IBVSEsource{1. Rocznik Astronomiczny Obserwatorium Krakowskiego ephemerides (SAC 72, 2001).}

\newpage

{\small
\IBVSEmin{
AD And & 52151.4062 & 0.0022 & I & $-$ & $-0.0304$ & \\
DD~Aqr & 52173.4541 & 0.0011 & I & $-$ & $-0.0087$ & \\
TW~Crb & 52147.3747 & 0.0002 & I & $-$ & $\hphantom{-}0.0167$ & \\
WZ~Cyg & 52134.3673 & 0.0004 &  I & $-$ & $\hphantom{-}0.0046$ & \\
AE~Cyg & 52131.3486 & 0.0011 & I & $-$ & $-0.0066$ & \\
CG~Cyg & 52129.3435 & 0.0005 & I & $-$ & $-0.0622$ & \\
DK~Cyg & 52144.3613 & 0.0006 & I & $-$ & $-0.0170$ & \\
V387~Cyg & 52149.4076 & 0.0003 & I & $-$ & $\hphantom{-}0.0012$ & \\
& 52158.3775 & 0.0006 & I & $-$ & $\hphantom{-}0.0026$ & \\
V456~Cyg & 52135.3909 & 0.0002 & I & $-$ & $-0.0101$ & \\
TT~Her & 52149.3434 & 0.0021 & I & $-$ & $-0.0041$ & \\
V839~Oph & 52143.3865 & 0.0012 & I & $-$ & $-0.0067$ & \\
& 52150.3345 & 0.0021 &  I & $-$ & $-0.0113$ & \\
BN~Peg & 52145.3848  & 0.0009 &  I & $-$ & $-0.0087$ & \\
BX~Peg & 52121.4212  & 0.0003 &  I & $-$ & $\hphantom{-}0.0104$ & \\
BU~Vul & 52124.4077  & 0.0003 &  I & $-$ & $\hphantom{-}0.0014$ & \\
& 52136.3578 & 0.0009 &  I & $-$ & $\hphantom{-}0.0025$ & \\
}

}

\IBVSEack{We would like to thank Dr. Robert H. Nelson for his software
 EBmin to calculate predictions of the EB star minima.}

\references

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

SAC 2001, Supplemento ad Annuario Cracoviense 72

\endreferences

\end{document}
