|Article in PDF||
vol. 7, N 32 (2007)
|#1 Sternberg Astronomical Institute, Moscow State University, Russia
#2 Isaac Newton Institute of Chile, Moscow Branch
#3 Instituto de Astronomia, Universidad Catolica del Norte, Chile
#4 Institute of Astronomy, Russian Academy of Sciences, Russia
#5 Department of Astronomy and Physics, Saint Mary's University, Canada
Received: 23.11.2007; accepted: 23.11.2007
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All observations of HQ Car and VY Car were made at Observatorio Cerro Armazones of the Universidad Catolica del Norte, Chile, between April and May, 2005. The data were obtained using the 16-inch Schmidt-Cassegrain telescope in combination with a CCD ST-9 photometer, with BVIc filters. The BVIc photoelectric observations of EW Sct were obtained using the 75-cm telescope of the South African Astronomical Observatory in April, 2007.
Acknowledgments: The authors gratefully acknowledge partial financial support of this study from the Russian Foundation of Basic Research and the program of Support for Leading Scientific Schools of Russia to LNB and ENP and from the Natural Sciences and Engineering Research Council of Canada to DGT.