\documentstyle[twoside, epsfig]{article}
\input ibvs2.sty
\begin{document}

\IBVShead{5977}{18 March 2011}

\IBVStitle{Maxima of High-Amplitude Delta Scuti Stars}

\IBVSauth{Wils, Patrick$^{1}$; Hambsch, Franz-Josef$^{1,2}$; Robertson, C. W.$^{3}$; Lampens, Patricia$^{4,5}$; Van Cauteren, Paul$^{1,5}$; Hautecler, Hubert$^{1}$; Panagiotopoulos, Kostas$^{6,7}$; Van Wassenhove, Jeroen$^{1}$; Staels, Bart$^{1,8}$; Vanleenhove, Maarten$^{1}$; Hoste, Serge$^{1}$; Pickard, Roger D.$^{9}$; Kleidis, Stelios$^{6,10}$; Ayiomamitis, Anthony$^{6,11}$; Nieuwenhout, Frans$^{12}$; Strigachev, Anton$^{13}$; Bernhard, Klaus$^{2}$}

\IBVSinst{Vereniging Voor Sterrenkunde, Belgium; e-mail: {\tt patrickwils@yahoo.com}}
\IBVSinst{Bundesdeutsche Arbeitsge\-mein\-schaft f\"{u}r Ver\"{a}nderliche Sterne e.V. Germany} % e-mail: hambsch@telenet.be
\IBVSinst{SETEC Observatory, Goddard, Kansas, USA} % 
\IBVSinst{Koninklijke Sterrenwacht van Belgi\"e (ROB), Brussel, Belgium} % email: patricia.lampens@oma.be
\IBVSinst{Beersel Hills Observatory, Beersel, Belgium} % email: paulvancauteren@skynet.be
\IBVSinst{Helliniki Astronomiki Enosi, Greece}
\IBVSinst{Pouda Observatory, Diakopto, Greece}
\IBVSinst{Center for Backyard Astrophysics Flanders}
\IBVSinst{British Astronomical Association, UK} % e-mail:roger.pickard@sky.com
\IBVSinst{Zagori Observatory, Epirus, Greece} % e-mail: steliosklidis@gmail.com
\IBVSinst{Perseus Observatory, Athens, Greece} % 
\IBVSinst{Werkgroep Veranderlijke Sterren, The Netherlands}
\IBVSinst{Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, Sofia, Bulgaria}
%Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, 72 Tsarigradsko Shosse Blvd., 1784 Sofia, Bulgaria

\IBVStyp{ DSCT, SXPHE  }
\IBVSkey{CCD photometry} 

\IBVSabs{337 maxima of 60 High-Amplitude Delta Scuti Stars (HADS) obtained}
\IBVSabs{from CCD observations, are presented. Observations of the newly}
\IBVSabs{discovered HADS GSC 4464-0924 are also included.}


\begintext

\vspace*{-0.6cm}

In this paper we report 337 further times of maximum for 60 High-Amplitude Delta Scuti Stars (HADS),
following the reports of Wils et al. (2009, 2010).  The majority of the data were obtained during 2010.
Time series photometry was obtained for the first time for a number of recently discovered HADS, mainly by the ASAS-3 survey (Pojma\'nski, 2002).

The observers and their instruments are given in Table~1.  
The times of maximum obtained are listed in Table~3.  
When the same maximum was observed in more than one filter, 
the table shows the average value of the times obtained in each filter individually. 
The method used to calculate the times of maximum is described in Wils et al. (2009).

The pulsation frequency of KZ~Lac turned out to be 9.577 cycles per day instead of 8.577 as given by the GCVS (Samus et al., 2007). 
A new ephemeris is given in Table~2, 
together with elements for a number of other stars that have been observed in detail the past year, 
or for which the existing ephemeris deviates substantially from our recent observations.
To get a better precision, use was made of data from the ASAS (Pojma\'nski, 2002), NSVS (Wo\'zniak et al., 2004) and SuperWASP surveys (Butters et al., 2010).
Table~2 also contains the elements of the previously unknown HADS GSC~4464-0924 (J2000 position: 20 52 31.06 +70 54 40.3) 
that was observed in the course of this study.
Its magnitude range is 12.2-12.6$V$.

The period of DW~Psc was found to be highly variable over the last decade.  
A linear ephemeris obtained from all available timings given by Krugly (1999), Van Cauteren et al. (2002) and this paper,
results in the following ephemeris:
\begin{equation}
  {\rm HJD\ Max} = 2452219.3647(5) + 0\fday059648094(13) \times E
\end{equation}

Since 2009 however the data are better represented by a period of 0.059647300(34) days, shorter by $69\pm3$ milliseconds.
An $O-C$ graph with respect to the above ephemeris is given in Fig.~1.  
A cyclical change in period is not excluded, but this has to be confirmed with more data.


\IBVSfig{8cm}{5977-f1.eps}{$O-C$ graph of DW~Psc with respect to the elements given in Eq.~1. }
\IBVSfigKey{5977-f1.eps}{DW Psc}{O-C graph}

\begin{table}
\begin{center}
\caption{List of instruments used for the observations.}
\small
\begin{tabular}{lllll}
\hline
Code & Observer(s) & Telescope & Observatory & CCD \\
\hline
AA & AA & Refractor 16 cm & Perseus Observatory, Athens & SBIG ST-10XME \\
AS & AS & Modified Ritchey-Chr\'etien 129 cm & Skinakas Observatory, Crete & CH360 \\
BHO1 & PL+PVC & Refractor 18 cm  & Beersel Hills Observatory  & SBIG ST-10XME \\
BHO2 & PL+PVC & Newton  40 cm  & Beersel Hills Observatory  & SBIG ST-10XME \\
BHO4 & PL+PVC & Newton 25 cm & Beersel Hills Observatory  & SBIG ST-10XME \\
FN & FN & Catadioptric 40 cm  & Alkmaar, Nederland & SBIG ST-7ME \\
HHSX & HH & Catadioptric 20 cm & Roosbeek Lake Observatory & Starlight XPress MX-716 \\
HHU & HH & Catadioptric 20 cm & Roosbeek Lake Observatory & SBIG ST-7XME \\
HMB4 & FJH & Ritchey-Chr\'etien 35 cm  & Mol, Belgium  & SBIG ST-8 \\
HMB8 & FJH & Ritchey-Chr\'etien 20 cm & Mol, Belgium  & SBIG ST-8XME \\
HMBC & FJH & Ritchey-Chr\'etien 28 cm & Mol, Belgium  & SBIG ST-10XME \\
HMBH & FJH & Hypergraph 40 cm  & Mol, Belgium  & SBIG STL-11000XM \\
HMBN & FJH & Catadioptric 28 cm & Farm Hakos, Namibia & SBIG ST-8XME \\
HMBT & FJH & Refractor 14 cm & Mol, Belgium  & SBIG STL11000XM \\
HMBW & FJH & Catadioptric 30 cm  & Astrokolkhoz, New Mexico  & SBIG ST-9XE \\
HMBX & FJH & Ritchey-Chr\'etien 50 cm & New Mexico, USA  & SBIG STL11000XM \\
HO18 & PL+PVC & Refractor 18 cm  & R.O.B.-Humain  & SBIG ST-10XME, STL6303 \\
HO40 & PL+PVC & Newton 40 cm  & R.O.B.-Humain  & SBIG ST-10XME \\
KP & KP & Modified Cassegrain 26 cm & Pouda Observatory & SBIG ST-10XME \\
MAV & MV & Newton 25 cm & Leest Observatory ? & SBIG ST-10XME \\
RP & RDP & Catadioptric 36 cm & Shobdon, UK  & Starlight XPress SXV-H9 \\
RP30 & RDP & Catadioptric 30 cm  & Shobdon, UK  & Starlight XPress SXV-H9 \\
SBL & BS & Cassegrain 28 + 23.5 cm  & Alan Guth Observatory & Starlight XPress MX-716 \\
SH & SH & Catadioptric 25 cm & Merelbeke, Belgium & Meade DSI II pro \\
SK & SK & Catadioptric 30 cm  & Zagori Observatory  & SBIG ST-7XMEI \\
SO & CWR & Catadioptric 40 cm  & SETEC Observatory  & Apogee AP7B \\
SO30 & CWR & Catadioptric 30 cm  & SETEC Observatory  & SBIG ST-8XME \\
SO40 & CWR & Catadioptric 40 cm  & SETEC Observatory  & SBIG ST-8XME \\
VWS & JVW & Refractor 15.2 cm  & Hooglede, Belgium & SBIG ST-7XME \\
\hline
\end{tabular}
\normalsize
\end{center}
\end{table}

\begin{table}
\begin{center}
\caption{Updated elements of known HADS.  Uncertainties are given in units of the last decimal.}
\vspace*{0.3cm}
\begin{tabular}{lll}
\hline
\multicolumn{1}{c}{Star}   & \multicolumn{1}{c}{Max (HJD)} & Period (d) \\
\hline
V524 And       & 2451505.703(1) & 0.094491797(11) \\
V2455 Cyg      & 2452885.399(1) & 0.094206008(7) \\
KZ Lac         & 2454075.578(1) & 0.10441604(11) \\
GSC 1594-2234  & 2452713.245(1) & 0.13668374(5) \\
GSC 2043-1201  & 2452701.105(2) & 0.07793425(5) \\
GSC 2696-1396  & 2455378.441(1) & 0.10307595(4) \\
GSC 2861-0970  & 2453987.695(1) & 0.11010541(3) \\
GSC 3074-0114  & 2454138.969(1) & 0.051296398(6) \\
GSC 3489-0868  & 2451311.722(2) & 0.08664929(4) \\
GSC 4417-0394  & 2454835.182(1) & 0.13224446(8) \\
GSC 4464-0924  & 2451342.906(3) & 0.08063046(5) \\
GSC 4556-1113  & 2453813.331(1) & 0.086343043(11) \\
GSC 4638-0455  & 2451511.601(1) & 0.09661133(2) \\
NSVS 11672463  & 2451323.913(2) & 0.10772127(4) \\
\hline
\end{tabular}
\end{center}
\end{table}

{\bf Acknowledgements:}\\
This work has made use of the SIMBAD database, operated at CDS, Strasbourg, France.
PVC is grateful for support from Astrotechniek \IBVSshortlink{http://www.astrotechniek.net}{www.astrotechniek.net}
and Baader Planetarium.  \IBVSshortlink{http://www.baader-planetarium.de}{www.baader-planetarium.de}
PL thanks the directors of the Royal Observatory of Belgium
(ROB) for purchasing and operating an optical telescope at the
radio-astronomy site of Humain under the project name {\it HOACS} (Humain Optical Observatory for
Astrophysics of Coeval Stars). The BHO and {\it HOACS} data were acquired with equipment purchased thanks to a
research fund financed by the Belgian National Lottery (1999).
Part of the equipment used at SETEC Observatory was purchased with a grant from the American Astronomical Society.
The Skinakas Observatory is a collaborative project of the University of
Crete, the Foundation for Research and Technology -- Hellas, and the
Max-Planck-Institut f\"ur Extraterrestrische Physik.
Part of the data were obtained through AAVSONet telescopes.  HMB acknowledges cooperation with Tom Krajci.

\begin{table}
\begin{center}
\caption{Observed times of maximum (Epoch = HJD - 2400000).}
\vspace*{0.3cm}
\small
\begin{tabular}{lllll|lllll}
\hline
Star & Epoch & Unc. & Obs. & Filter & Star & Epoch & Unc. & Obs. & Filter \\
\hline
GP And        & 55473.6155 & 0.0007 & SO30 & V    & LW Dra        & 55295.3705 & 0.0014 & VWS  & V    \\
              & 55473.6942 & 0.0004 & SO30 & V    &               & 55340.5057 & 0.0005 & VWS  & V    \\
              & 55473.7731 & 0.0007 & SO30 & V    &               & 55352.4392 & 0.0008 & VWS  & V    \\
              & 55473.8518 & 0.0006 & SO30 & V    &               & 55373.7057 & 0.0016 & SO30 & V    \\
              & 55473.9309 & 0.0010 & SO30 & V    &               & 55451.6896 & 0.0010 & SO30 & V    \\
              & 55479.5955 & 0.0005 & SO30 & V    &               & 55479.3358 & 0.0010 & VWS  & V    \\
              & 55479.6740 & 0.0003 & SO30 & V    &               & 55480.3989 & 0.0010 & VWS  & V    \\
              & 55479.7526 & 0.0005 & SO30 & V    & DY Her        & 55322.4551 & 0.0009 & BHO4 & V    \\
              & 55479.8313 & 0.0016 & SO30 & V    &               & 55335.5343 & 0.0007 & HHU  & C    \\
              & 55479.9102 & 0.0004 & SO30 & V    &               & 55395.4324 & 0.0005 & MAV  & V    \\
              & 55493.3654 & 0.0008 & KP   & V    &               & 55395.5805 & 0.0005 & MAV  & V    \\
              & 55493.4440 & 0.0009 & KP   & V    & V1086 Her     & 55338.4849 & 0.0005 & HO40 & C    \\
              & 55493.5230 & 0.0014 & KP   & V    & V1116 Her     & 55303.5268 & 0.0006 & HMBH & V    \\
              & 55493.6017 & 0.0014 & KP   & V    &               & 55303.6220 & 0.0007 & HMBH & V    \\
              & 55525.3098 & 0.0006 & RP   & V    &               & 55340.4535 & 0.0005 & HHU  & C    \\
              & 55525.3895 & 0.0009 & RP   & V    &               & 55440.3423 & 0.0021 & SH   & V    \\
V460 And      & 55452.3457 & 0.0019 & HMB8 & V    & KZ Lac        & 54075.5753 & 0.0008 & HMBX & C    \\
              & 55452.4202 & 0.0011 & HMB8 & V    &               & 54075.6795 & 0.0010 & HMBX & C    \\
              & 55452.4947 & 0.0008 & HMB8 & V    &               & 54076.6189 & 0.0009 & HMBX & C    \\
              & 55452.5701 & 0.0007 & HMB8 & V    &               & 54077.6627 & 0.0014 & HMBX & C    \\
V524 And      & 55430.4199 & 0.0003 & HHU  & C    &               & 54084.5556 & 0.0022 & HMBX & C    \\
              & 55433.4441 & 0.0009 & MAV  & V    &               & 55427.5661 & 0.0025 & SH   & V    \\
              & 55481.4454 & 0.0004 & HHU  & C    &               & 55443.4380 & 0.0015 & SH   & V    \\
V544 And      & 55452.4119 & 0.0007 & HMBC & V    & EH Lib        & 55334.4172 & 0.0004 & HHU  & C    \\
              & 55452.5192 & 0.0006 & HMBC & V    &               & 55334.5055 & 0.0003 & HHU  & C    \\
              & 55452.6263 & 0.0005 & HMBC & V    &               & 55367.6609 & 0.0004 & SO40 & V    \\
              & 55531.4399 & 0.0005 & KP   & V    &               & 55367.7496 & 0.0007 & SO40 & V    \\
CY Aqr        & 55434.3598 & 0.0006 & AA   & C    & SZ Lyn        & 55304.5137 & 0.0004 & VWS  & V    \\
              & 55434.4205 & 0.0006 & AA   & C    &               & 55310.4195 & 0.0004 & VWS  & V    \\
              & 55434.4816 & 0.0007 & AA   & C    &               & 55310.5398 & 0.0004 & VWS  & V    \\
              & 55481.3582 & 0.0003 & HHU  & C    &               & 55507.4890 & 0.0005 & KP   & V    \\
YZ Boo        & 55262.5192 & 0.0007 & SBL  & V    &               & 55507.6095 & 0.0005 & KP   & V    \\
              & 55262.6226 & 0.0007 & SBL  & V    & V593 Lyr      & 55309.5118 & 0.0004 & HO40 & C    \\
              & 55311.4414 & 0.0004 & VWS  & V    &               & 55309.6136 & 0.0003 & HO40 & C    \\
              & 55321.4349 & 0.0002 & HHU  & C    &               & 55371.4152 & 0.0008 & HHU  & C    \\
              & 55321.5391 & 0.0002 & HHU  & C    &               & 55371.5176 & 0.0006 & HHU  & C    \\
              & 55367.6512 & 0.0011 & SO30 & V    &               & 55420.4485 & 0.0010 & SH   & V    \\
              & 55367.7549 & 0.0008 & SO30 & V    & V337 Ori      & 55528.5845 & 0.0013 & RP   & V    \\
V376 Cam      & 55263.3286 & 0.0006 & HMBT & V    & V1162 Ori     & 55244.3083 & 0.0013 & BHO4 & V    \\
              & 55263.6093 & 0.0013 & HMBT & V    &               & 55254.2226 & 0.0020 & SK   & V    \\
              & 55486.4433 & 0.0004 & VWS  & V    &               & 55254.3020 & 0.0031 & SK   & V    \\
              & 55487.4255 & 0.0004 & VWS  & V    &               & 55254.3793 & 0.0014 & SK   & V    \\
              & 55520.5422 & 0.0004 & KP   & C    &               & 55257.2910 & 0.0026 & BHO4 & V    \\
              & 55520.6826 & 0.0003 & KP   & C    &               & 55258.2358 & 0.0023 & SK   & V    \\
V792 Cep      & 55462.4542 & 0.0028 & HMBC & V    &               & 55293.3302 & 0.0039 & HO18 & V    \\
XX Cyg        & 55341.4404 & 0.0003 & HO18 & C    & DY Peg        & 55409.7914 & 0.0007 & SO30 & V    \\
              & 55352.4979 & 0.0003 & HMBH & V    &               & 55409.8670 & 0.0013 & SO30 & V    \\
              & 55437.3291 & 0.0005 & AA   & C    &               & 55445.3798 & 0.0007 & MAV  & V    \\
              & 55437.4641 & 0.0004 & AA   & C    &               & 55445.4527 & 0.0003 & MAV  & V    \\
              & 55437.5989 & 0.0004 & AA   & C    &               & 55445.5260 & 0.0003 & MAV  & V    \\
              & 55494.2412 & 0.0004 & KP   & V    &               & 55459.6009 & 0.0010 & SO30 & V    \\
              & 55494.3760 & 0.0004 & KP   & V    &               & 55459.6738 & 0.0004 & SO30 & V    \\
              & 55495.3212 & 0.0007 & HHU  & C    &               & 55459.7464 & 0.0002 & SO30 & V    \\
V2455 Cyg     & 55365.4676 & 0.0005 & SBL  & V    &               & 55459.8196 & 0.0003 & SO30 & V    \\
              & 55365.5619 & 0.0011 & SBL  & V    &               & 55459.8924 & 0.0006 & SO30 & V    \\
              & 55373.4747 & 0.0013 & SBL  & V    &               & 55464.6327 & 0.0002 & SO30 & V    \\
              & 55417.5631 & 0.0004 & SH   & V    &               & 55464.7053 & 0.0003 & SO30 & V    \\
LW Dra        & 55291.4726 & 0.0007 & VWS  & V    &               & 55464.7784 & 0.0002 & SO30 & V    \\
\hline
\end{tabular}
\normalsize
\end{center}
\end{table}

\setcounter{table}{2}
\begin{table}
\begin{center}
\caption{Observed times of maximum (continued).}
\small
\begin{tabular}{lllll|lllll}
\hline
Star & Epoch & Unc. & Obs. & Filter & Star & Epoch & Unc. & Obs. & Filter \\
\hline
DY Peg        & 55464.8514 & 0.0003 & SO30 & V    & DW Psc        & 55396.5775 & 0.0003 & HO40 & C    \\
              & 55464.9245 & 0.0005 & SO30 & V    &               & 55445.4875 & 0.0004 & HHU  & C    \\
              & 55466.4561 & 0.0005 & RP   & C    &               & 55505.4920 & 0.0002 & KP   & C    \\
              & 55466.6018 & 0.0002 & SO30 & V    &               & 55505.5517 & 0.0004 & KP   & C    \\
              & 55466.6747 & 0.0002 & SO30 & V    & CW Ser        & 55365.3304 & 0.0007 & HMBN & V    \\
              & 55466.7476 & 0.0006 & SO30 & V    & GW UMa        & 55264.4392 & 0.0009 & HMB4 & V    \\
              & 55466.8201 & 0.0004 & SO30 & V    &               & 55264.6425 & 0.0008 & HMB4 & V    \\
              & 55466.8937 & 0.0004 & SO30 & V    &               & 55521.6828 & 0.0013 & KP   & V    \\
              & 55468.6439 & 0.0003 & SO30 & V    & GSC 0321-0314 & 55352.4908 & 0.0002 & HHU  & C    \\
              & 55468.7165 & 0.0003 & SO30 & V    &               & 55362.2711 & 0.0004 & HMBN & V    \\
              & 55468.7893 & 0.0002 & SO30 & V    &               & 55362.3496 & 0.0003 & HMBN & V    \\
              & 55468.8627 & 0.0002 & SO30 & V    &               & 55362.4276 & 0.0004 & HMBN & V    \\
              & 55468.9354 & 0.0007 & SO30 & V    & GSC 0429-2098 & 55338.4200 & 0.0019 & HO18 & C    \\
              & 55470.6126 & 0.0002 & SO30 & V    &               & 55350.7098 & 0.0013 & HMBW & V    \\
              & 55470.6856 & 0.0002 & SO30 & V    &               & 55350.8555 & 0.0019 & HMBW & V    \\
              & 55470.7583 & 0.0004 & SO30 & V    &               & 55353.7820 & 0.0011 & HMBW & V    \\
              & 55470.8312 & 0.0003 & SO30 & V    &               & 55358.7564 & 0.0019 & HMBW & V    \\
DW Psc        & 52508.4812 & 0.0008 & AS   & V    &               & 55358.9031 & 0.0011 & HMBW & V    \\
              & 52931.6386 & 0.0007 & SO   & C    & GSC 0612-0771 & 55443.4199 & 0.0006 & HMBC & V    \\
              & 52931.6991 & 0.0006 & SO   & C    &               & 55443.4830 & 0.0005 & HMBC & V    \\
              & 52931.7595 & 0.0007 & SO   & C    &               & 55443.5453 & 0.0005 & HMBC & V    \\
              & 52931.8169 & 0.0005 & SO   & C    &               & 55443.6084 & 0.0005 & HMBC & V    \\
              & 52931.8760 & 0.0007 & SO   & C    &               & 55444.4241 & 0.0005 & HMBC & V    \\
              & 54077.7599 & 0.0009 & HMBX & C    &               & 55444.4874 & 0.0004 & HMBC & V    \\
              & 54077.8197 & 0.0005 & HMBX & C    &               & 55444.5504 & 0.0007 & HMBC & V    \\
              & 54110.5671 & 0.0006 & HMBX & C    &               & 55445.4920 & 0.0007 & HMB8 & V    \\
              & 54110.6264 & 0.0010 & HMBX & C    &               & 55445.5546 & 0.0006 & HMB8 & V    \\
              & 54360.5549 & 0.0008 & BHO2 & C    &               & 55445.6175 & 0.0006 & HMB8 & V    \\
              & 54392.4675 & 0.0008 & SK   & C    & GSC 0628-0348 & 55461.4997 & 0.0007 & HMB4 & V    \\
              & 54392.5270 & 0.0007 & SK   & C    & GSC 0933-0651 & 55338.4924 & 0.0005 & HMBH & C    \\
              & 54400.6984 & 0.0006 & SO30 & C    & GSC 1061-1651 & 55393.4367 & 0.0011 & HMB8 & V    \\
              & 54400.7575 & 0.0007 & SO30 & C    & GSC 1076-0158 & 55365.4317 & 0.0007 & HMBN & V    \\
              & 54400.8179 & 0.0007 & SO30 & C    &               & 55365.5186 & 0.0009 & HMBN & V    \\
              & 54400.8775 & 0.0008 & SO30 & C    &               & 55365.6058 & 0.0009 & HMBN & V    \\
              & 54400.9365 & 0.0009 & SO30 & C    &               & 55478.3546 & 0.0008 & HHU  & C    \\
              & 54730.4939 & 0.0008 & BHO1 & C    & GSC 1158-0921 & 55439.4442 & 0.0004 & HHU  & C    \\
              & 54830.2252 & 0.0008 & SBL  & C    &               & 55445.3856 & 0.0004 & HHU  & C    \\
              & 54830.2848 & 0.0008 & MAV  & C    &               & 55445.4515 & 0.0006 & SH   & V    \\
              & 54830.2846 & 0.0007 & SBL  & C    &               & 55445.5160 & 0.0006 & SH   & V    \\
              & 54830.3448 & 0.0007 & MAV  & C    & GSC 1220-1131 & 55443.4758 & 0.0008 & HMB8 & V    \\
              & 54830.4041 & 0.0008 & MAV  & C    &               & 55443.5574 & 0.0008 & HMB8 & V    \\
              & 54838.2773 & 0.0006 & HO40 & C    &               & 55443.6390 & 0.0007 & HMB8 & V    \\
              & 55101.4425 & 0.0008 & HO40 & C    &               & 55444.4524 & 0.0010 & HMB8 & V    \\
              & 55140.6912 & 0.0007 & SO30 & C    &               & 55444.5334 & 0.0008 & HMB8 & V    \\
              & 55140.7502 & 0.0009 & SO30 & C    &               & 55444.6146 & 0.0006 & HMB8 & V    \\
              & 55140.8094 & 0.0008 & SO30 & C    & GSC 1594-2234 & 55340.4431 & 0.0006 & HO18 & V    \\
              & 55140.8700 & 0.0007 & SO30 & C    &               & 55340.5796 & 0.0002 & HO18 & V    \\
              & 55140.9301 & 0.0010 & SO30 & C    &               & 55374.4790 & 0.0005 & HHU  & C    \\
              & 55198.3099 & 0.0014 & HMBH & V    &               & 55462.3647 & 0.0010 & MAV  & V    \\
              & 55198.3688 & 0.0029 & HMBH & V    & GSC 1621-1643 & 55365.5201 & 0.0049 & HMBN & V    \\
              & 55200.2190 & 0.0013 & HMBH & C    &               & 55365.6329 & 0.0033 & HMBN & V    \\
              & 55200.2786 & 0.0011 & HMBH & C    & GSC 1750-1237 & 55445.3591 & 0.0006 & HMBC & V    \\
              & 55204.2752 & 0.0021 & HMBH & C    &               & 55445.4476 & 0.0006 & HMBC & V    \\
              & 55204.3339 & 0.0021 & HMBH & C    &               & 55445.5345 & 0.0007 & HMBC & V    \\
              & 55204.3948 & 0.0009 & HMBH & C    &               & 55445.6211 & 0.0006 & HMBC & V    \\
              & 55211.2539 & 0.0011 & HO40 & C    & GSC 2043-1201 & 55363.3402 & 0.0010 & HMBN & V    \\
              & 55229.2677 & 0.0008 & SK   & C    &               & 55363.4172 & 0.0006 & HMBN & V    \\
              & 55231.2352 & 0.0006 & SK   & C    & GSC 2080-0986 & 55350.5293 & 0.0004 & HHU  & C    \\
\hline
\end{tabular}
\normalsize
\end{center}
\end{table}

\setcounter{table}{2}
\begin{table}
\begin{center}
\caption{Observed times of maximum (continued).}
\small
\begin{tabular}{lllll|lllll}
\hline
Star & Epoch & Unc. & Obs. & Filter & Star & Epoch & Unc. & Obs. & Filter \\
\hline
GSC 2108-1564 & 55337.5449 & 0.0009 & HO18 & C    & GSC 3832-0152 & 55301.5178 & 0.0005 & HHSX & C    \\
GSC 2566-1398 & 55304.5360 & 0.0010 & HMBH & V    &               & 55308.3683 & 0.0005 & HO18 & V    \\
              & 55308.3457 & 0.0020 & HMBT & V    & GSC 3863-0740 & 55264.3671 & 0.0024 & HMBC & V    \\
              & 55308.4366 & 0.0010 & HMBT & V    &               & 55267.9247 & 0.0016 & HMBW & V    \\
              & 55308.5273 & 0.0007 & HMBT & V    & GSC 3934-1904 & 55339.5393 & 0.0003 & HMBH & V    \\
              & 55351.4324 & 0.0004 & HHU  & C    &               & 55364.4524 & 0.0008 & SBL  & V    \\
              & 55351.5228 & 0.0003 & HHU  & C    &               & 55364.5617 & 0.0008 & SBL  & V    \\
GSC 2696-1396 & 55378.4410 & 0.0011 & HHU  & C    &               & 55417.4471 & 0.0010 & HHU  & C    \\
              & 55452.3469 & 0.0012 & SH   & V    & GSC 4417-0394 & 55258.3647 & 0.0013 & BHO4 & V    \\
GSC 2861-0970 & 55465.6402 & 0.0006 & RP   & C    &               & 55263.5219 & 0.0008 & RP30 & V    \\
              & 55508.4706 & 0.0004 & FN   & V    &               & 55264.4476 & 0.0016 & HMBT & V    \\
              & 55508.5808 & 0.0003 & FN   & V    &               & 55264.5804 & 0.0026 & HMBT & V    \\
              & 55516.3976 & 0.0016 & HMB4 & V    &               & 55310.4680 & 0.0012 & HHSX & C    \\
GSC 2977-0238 & 55262.3263 & 0.0001 & HMB4 & VR   &               & 55552.4762 & 0.0008 & KP   & C    \\
              & 55263.3896 & 0.0001 & HMB4 & VR   &               & 55552.6082 & 0.0008 & KP   & C    \\
              & 55263.4654 & 0.0001 & HMB4 & VR   & GSC 4464-0924 & 55304.5238 & 0.0007 & HO18 & C    \\
              & 55263.5413 & 0.0001 & HMB4 & VR   &               & 55375.4772 & 0.0006 & HHU  & C    \\
              & 55263.6181 & 0.0001 & HMB4 & VR   &               & 55452.3173 & 0.0004 & HHU  & C    \\
              & 55309.3295 & 0.0005 & HO40 & V    &               & 55452.4000 & 0.0007 & HHU  & C    \\
              & 55309.4051 & 0.0003 & HO40 & V    & GSC 4500-0083 & 55365.4573 & 0.0013 & HHU  & C    \\
              & 55536.4462 & 0.0002 & KP   & V    &               & 55479.2772 & 0.0016 & HHU  & C    \\
              & 55536.5222 & 0.0002 & KP   & V    &               & 55479.3609 & 0.0009 & HHU  & C    \\
              & 55536.5981 & 0.0003 & KP   & V    & GSC 4552-1498 & 55257.3948 & 0.0015 & BHO4 & C    \\
GSC 3074-0114 & 55310.3739 & 0.0006 & HO18 & C    &               & 55262.4737 & 0.0003 & RP30 & V    \\
              & 55310.4252 & 0.0004 & HO18 & C    &               & 55262.5288 & 0.0003 & RP30 & V    \\
              & 55310.4764 & 0.0005 & HO18 & C    &               & 55301.4297 & 0.0004 & RP30 & V    \\
              & 55310.5275 & 0.0004 & HO18 & C    &               & 55301.4852 & 0.0003 & RP30 & V    \\
              & 55386.4465 & 0.0004 & HMB8 & V    &               & 55480.3589 & 0.0003 & HHU  & C    \\
              & 55386.4972 & 0.0006 & HMB8 & V    &               & 55480.4146 & 0.0003 & HHU  & C    \\
              & 55386.5486 & 0.0010 & HMB8 & V    &               & 55537.4533 & 0.0005 & KP   & C    \\
              & 55417.3779 & 0.0008 & SH   & V    &               & 55537.5094 & 0.0002 & KP   & C    \\
              & 55433.3829 & 0.0007 & SH   & V    &               & 55537.5650 & 0.0002 & KP   & C    \\
GSC 3483-0746 & 55266.5628 & 0.0008 & HMBH & V    & GSC 4556-1113 & 55262.3407 & 0.0009 & BHO4 & V    \\
              & 55266.6748 & 0.0018 & HMBH & V    &               & 55461.3606 & 0.0004 & VWS  & V    \\
              & 55311.3810 & 0.0015 & HO18 & V    &               & 55478.3694 & 0.0007 & VWS  & V    \\
              & 55311.4946 & 0.0008 & HO18 & V    &               & 55478.4564 & 0.0005 & VWS  & V    \\
GSC 3489-0868 & 55334.4160 & 0.0015 & BHO4 & C    &               & 55478.5426 & 0.0006 & VWS  & V    \\
              & 55334.5016 & 0.0010 & BHO4 & C    &               & 55521.3686 & 0.0004 & VWS  & V    \\
GSC 3490-0814 & 55260.5677 & 0.0013 & HO40 & V    &               & 55521.4550 & 0.0003 & VWS  & V    \\
              & 55308.5073 & 0.0016 & HO18 & C    &               & 55543.3012 & 0.0003 & VWS  & V    \\
              & 55309.4001 & 0.0020 & HO18 & C    &               & 55543.3876 & 0.0003 & VWS  & V    \\
              & 55396.4434 & 0.0008 & MAV  & V    & GSC 4638-0455 & 55337.4089 & 0.0003 & HMBH & C    \\
              & 55396.5126 & 0.0009 & MAV  & V    &               & 55337.5059 & 0.0008 & HMBH & C    \\
GSC 3832-0152 & 55258.4054 & 0.0011 & SBL  & V    & GSC 4923-0693 & 55297.3319 & 0.0008 & HMBH & V    \\
              & 55258.4960 & 0.0011 & SBL  & V    &               & 55297.3980 & 0.0009 & HMBH & V    \\
              & 55258.5861 & 0.0013 & SBL  & V    &               & 55303.3880 & 0.0006 & HMBH & V    \\
              & 55260.4138 & 0.0004 & HO40 & V    &               & 55303.4546 & 0.0006 & HMBH & V    \\
              & 55260.5051 & 0.0003 & HO40 & V    & GSC 5018-1085 & 55337.4338 & 0.0003 & HO18 & C    \\
              & 55260.5054 & 0.0005 & SBL  & V    & NSVS 11672463 & 55445.4360 & 0.0005 & SH   & V    \\
              & 55298.4128 & 0.0008 & HHSX & C    & NSVS 14243430 & 55365.4340 & 0.0008 & HMBN & V    \\
              & 55298.5030 & 0.0009 & HHSX & C    &               & 55365.5199 & 0.0003 & HMBN & V    \\
              & 55301.4261 & 0.0009 & HHSX & C    &               & 55365.6061 & 0.0003 & HMBN & V    \\
\hline
\end{tabular}
\normalsize
\end{center}
\end{table}

\newpage
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\endreferences


\end{document}
