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ZZ Cyg times of minima
We present new photometry of the eclipsing binary ZZ Cyg. From all accumulated eclipsing times, we constructed the (O-C) curve, which can be described by a downward parabola... -
V873 Per BVR light curves
We present a photometric study of a weak-contact binary V873 Per. New observations in BVR filter bands showed asymmetric light curves to be a negative type of the O'Connell... -
V441 Lac VRI light curves
We present the first multi-color VRI CCD light curves of a short-period eclipsing binary star v441 Lac in this paper. We obtained our light curves on Oct. 4 and 8, 2013 at... -
Time minima of EP Aur
We present new observations for the eclipsing binary EP Aurigae, which were performed by using three small telescopes in China from 2003 December to 2014 January. With the... -
Light curves of 8 Algol-type systems
Analyzing available photometry from the Super WASP and other databases, we performed the very first light curve analysis of eight eclipsing binary systems V537 And, GS Boo, AM... -
BVRcIc light curves of LU Lac
LU Lac is a neglected W UMa binary star in photometric investigations. In this paper, we present BVRI CCD photometric light curves obtained on one night in 2012. The first... -
V729 Cyg UBVRI light curves
We present multicolor photometry of the massive interacting close binary system V729 Cyg. The light variations of V729 Cyg were observed in the Bessel U, B, V, R and I bands... -
Time of minima of eclipsing binaries
This paper continues the publication of times of minima for eclipsing binary stars from observations reported to the AAVSO Eclipsing Binary section. Times of minima from... -
Long-term photometry of 11 RS CVn stars
I present BVRI photometry of short-period (P<1d) eclipsing RS CVn binary star systems collected between 1988 and 2009 at Mount Laguna Observatory. Most of the data are for ER... -
VBLUW photometry of eclipsing binary stars
VBLUW photometric observations of 13 eclipsing binary stars carried out by C.J. van Houten with the Walraven 5-color photometer between 1965 and 1978 are presented together with... -
Emission lines in 32 Cygni
I identify the profusion of emission lines seen in IUE spectra of 32 Cyg (K4-5 Ib+B6-7 IV-V) during total eclipse. With the exception of a very few weak lines, all of these are... -
Spectroscopy of the multiple star HT Vir
The spectra of HT Virginis were collected at 0.5m Newtonian telescope (PST1) equipped with echelle spectrograph (R=40 000). The focal length of the telescope is 2.25m. The data... -
Minima and maxima of 503 variables
In this 69th compilation of BAV results, photoelectric observations obtained in the year 2010 and 2011 are presented on 503 variable stars giving 767 minima on eclipsing... -
Minima and maxima of 436 variables
In this 68th compilation of BAV results, photoelectric observations obtained in the year 2010 are presented on 436 variable stars giving 784 minima on eclipsing binaries and... -
Minima and maxima of 816 variables
In this 55th compilation of BAV results, photoelectric observations obtained in the years 2005 till 2006 are presented on 816 variable stars giving 1722 minima and maxima. All... -
Eclipsing binary stars photoelectric minima
All observations were conducted in Tashkent, Uzbekistan from an urban yard under moderate light pollution. 28cm Schmidt-Cassegrain, 2640mm focal length. German equatorial mount.... -
New elements for 80 eclipsing binaries V.
This research presents new elements for 80 eclipsing binaries found with the help of the ASAS-3 (Cat. ), Hipparcos (Cat. ) and NSVS (2004AJ....127.2436W) databases. Cone search... -
163-nd list of minima of eclipsing binaries
The following Table 1 lists 550 timings of minima of eclipsing binaries secured both by photoelectrical as well as by visual means by BBSAG observers, primarily obtained between... -
Elements of southern eclipsing binaries
A set of 442 eclipsing binaries was selected from the GCVS catalog (Kholopov et al., 2003) that had declination <0{deg}, minimum magnitude brighter than 13.0, and no... -
Times of minima of eclipsing binaries in 2003
Times of minima for a number of neglected eclipsing binaries are presented. Cone search capability for table J/other/IBVS/5502/table1 (Observed stars)