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Abundances of 7 southern-hemisphere Cepheids
For seven faint southern Cepheids (WW Car, SX Car, UZ Car, UY Car, GX Car, HW Car, YZ Car), we have determined their atmospheric parameters and chemical composition for the... -
V340 Ser and V448 Lac light curves
We analyze long-term UBV observations and ASAS-3 photometry for five candidates for protoplanetary nebulae - F and G supergiants with infrared excesses at high Galactic... -
UBV light curves of LT Del
Long-term photometric and spectroscopic observations of the yellow symbiotic star LT Del are analyzed. UBV light curves are presented. Based on the observations of 20 cycles, we... -
JHKLM light curves of WR 140
We present the results of our infrared observations of WR 140 (=V1687 Cyg) in 2001-2010. -
ASAS 101538-5933.1 BV light curves
In the plate collection of the Harvard College Observatory, we have obtained 528 photographic magnitude estimates for the recently discovered long-period classical Cepheid ASAS... -
JHKLM photometry of 3 RV Tau supergiants
We have analyzed our long-term (1995-2008) JHKLM photometry for three variable RV Tau supergiants. It follows from this analysis that: the amplitude of the JHK brightness... -
2000-2008 UBV observations of HD 179821
We present new results of our UBV photometry for HD 179821=V1427 Aql, an F supergiant with an infrared excess, from 2000 to 2008. The semiregular low-amplitude... -
Light Curves of RS Pup
Based on photographic plates from the Harvard College Observatory, we have made 1492 magnitude estimates for the long-period classical Cepheid RS Pup (P=41.4d). Together with... -
BV light curves of 33 ASAS-3 Cepheids
Cepheids, the principal distance indicators, point to the existence of two inner Galactic spiral arms in the immediate solar neighborhood (within 5kpc). However, the available... -
Photoelectric observation of Cepheids
From December 2006 to January 2008, we performed 1699 BVIc observations for 46 low-amplitude Cepheids discovered in the course of the ASAS project using the 76-cm telescope of... -
V,pg light curves of NSV 9159
We have obtained 530 photographic magnitude estimates for the long-period classical Cepheid NSV 9159 (P=39d) in the plate collections of the Harvard Observatory and the... -
Spectrophotometry of 77 variable stars
The results of visual and near-infrared spectrophotometric observations for 77 variable stars obtained during 1971-1991 in Chile, Armenia and Bolivia. The quasi-monochromatic... -
FG Sagittae: new observations
In 1999-2002 the BVRI photometric and spectroscopic observations of FG Sge were made. The star has been in a new R CrB photometric phase since 1992. -
General Catalogue of Variable Stars. Vol. 1
We present a new electronic version of the first volume of the General Catalogue of Variable Stars (GCVS), fourth edition, which contains data on 10558 variable stars in... -
Parameters of RR Lyrae Type Variables
The method of statistical parallaxes is applied to a sample of 262 Rrab RR Lyr type variables with published photoelectric photometry, radial velocities, abundances and with... -
UBV photometry of UV Cas
UBV observations of UV Cas during 1996-1999 show mostly irregular light variations. -
IRAS 20004+2955 (V1027 Cyg) chemical comp.
Based on high-dispersion echelle spectra taken with the 6-m telescope, detailed chemical composition of the IR source IRAS 20004+2955 identified with the variable star V1027 Cyg... -
Spectrum of IRAS 23304+6147
Based on CCD-spectra obtain with the 6-m telescope, detailed chemical composition of the IR source IRAS 23304+6147 identified with the faint star is studied. -
Cepheid radii
Based on dense series of photoelectric observations and on our radial-velocity measurements, the radii of 62 northern Cepheids are calculated by Balona's method. For each star... -
Close binary system V502 Cyg in Cyg T2
Photoelectric UBVR observations of the short period close binary system V502 Cyg in the T association Cyg T2 are presented.
