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Galactic classical Cepheids properties
Based on our compiled catalogue of positions, velocities, ages, and abundances of nine chemical elements for 221 classical Cepheids, we analyze the dependences of the relative... -
Equivalent widths of thick-disk red giants
The atmospheric parameters and elemental abundances for ten thick-disk red giants have been determined from high-resolution spectra by the method of model stellar atmospheres.... -
Astrophysical parameters for 593 open clusters
Based on published data, we have compiled a catalogue of fundamental astrophysical parameters for 593 open clusters of the Galaxy. In particular, the catalogue provides the... -
Equivalent widths of 14 red giants
The results of a comparative analysis of the elemental abundances in the atmospheres of 14 red giants with high Galactic space velocities are presented. For almost all of the... -
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... -
Photometry of FG Sge at the ejection state
New photometric observations of the variable star FG Sge, a rapidly evolving planetary nebula nucleus, were performed in 2003-2008. On 230 nights, we obtained 86 UBV and 155... -
He, C, N and O abundances in planetary nebulae
The He, C, N, and O abundances in more than 120 planetary nebulae (PNe) of our Galaxy and the Magellanic Clouds have been redetermined by analyzing new PNe observations. The... -
New spectral types for Tycho2 stars
We compare the spectroscopic and trigonometric parallaxes of common stars from the Tycho-2 Spectral Type and Hipparcos Catalogues. This comparison has revealed that the distance... -
UBV light curve and spectroscopy of StHa62
Photoelectric observations of HD 51585 (OY Gem), a B[e] star with an infrared excess and a candidate for protoplanetary nebulae, obtained with a 60-cm telescope at the Crimean... -
Photometric Variability of HD 51585
Photoelectric observations of HD 51585 (OY Gem), a B[e] star with an infrared excess and a candidate for protoplanetary nebulae, obtained with a 60-cm telescope at the Crimean... -
Unidentified cometary emission lines
We discuss the possible nature of unidentified cometary emission lines. We propose a model of the ice particles in cometary halos as a mixture of frozen polycyclic aromatic... -
BVRI and fluxes of HM Sge in 1986-2000
The results of BVRI photometric and spectroscopic observations of symbiotic Nova HM Sagittae were made in 1986-2002. -
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. -
UBVR photometry of Nova Mon 2002 (V838 Mon)
UBVR photometric and spectroscopic observations of V838 Mon during the outbursts. -
UBV and line identification of V1853 Cyg
Photoelectric and spectroscopic observations of the protoplanetary object V1853 Cyg, a B supergiant with an IR excess, are given. The observations were carried out with a UBV... -
Spectrum of bipolar nebula AFGL 2688
Based on echelle spectra obtained at the prime focus of the 6-m telescope, the detailed chemical composition of one of the components of the bipolar nebula identified with the... -
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. -
UBV photometry of IRAS 18062+2410
The photometric and spectroscopic observations of IRAS 18062+2410 = V886 Her, a candidate for protoplanetary objects, in 1996-1997 are presented. The star exhibits rapid light... -
Spectroscopy of H{alpha} blue stars in M 33
Multiobject spectroscopy for 118 blue stars with an H{alpha} excess in the galaxy M 33 from the lists of SS 433 and LBV candidates and other rare types of massive stars is...
