Observational Capacities of lm Optical Telescope Zeiss-1000 at SAO RAS
V.V. Komarov, V.N. Komarov, A.S. Moskvitin, S.V. Drabek, E.V. Emelyanov, V.S. Shergin

7

On some Stars Probably Having Extended Atmospheres or Gas-Dust Shells, or Circumstellar Disk-like Structures, According to the Results of High-Speed Photometry of Their Lunar Occultations
E.M. Trunkovsky

13

Fast and super-fast variations of line profile in spectra of early-type stars
O. Tsiopa, A. Batrakov, A. Kholtygin, S. Hubrig, S. Fabrika, A. Kostenkov, A. Valeevv

20

Methods of the atmospheric parameters determinations
T.A. Ryabchikova

29

Fundamental parameters of Ap-stars 78 Vir (HD~118022) and AX CVn (HD~110066)
A.M. Romanovskaya, T.A. Ryabchikova, D.V. Shulyak

39

Modeling the optical spectra of rho Leo
A. Kostenkov, A. Batrakov, A. Kholtygin, A. Valeev

45

Application of the probability current method to nuclear dynamical calculations in collisions with hydrogen
Ya.V. Voronov, A.K. Belyaev

48

Fundamental parameters of the atmospheres of ö SCT-Type Stars
A.I. Galeev, E.R. Lyumanov, N.A. Sakhbullin

51

Investigation of the atmosphere of HR8334 (v Cep, A2Ia) star
Z.A. Samedov, A.M. Khalilov, S.Sh. Hajiyeva, S.Sh. Rajabova

54

Stellar dynamo in context of stellar activity data
D. Sokoloff, N. Ismaylov

59

Recent advances in the studies of magnetic fields in Ap/Bp stars and their predecessors, the Herbig Ae/Be stars
S. Hubrig, S.P. Järvirıen, M. Schoiler

68

Main results of magnetic field of CP stars studies with the 6m telescope BTA in last decade (2005-2019)
I.I. Romanyuk, D.O. Kudryavtsev, E.A. Semenko, L.A. Yakunin, A.V. Moiseeva

77

The effect of peculiarity in the atmospheres of magnetic CP stars
S.G. Aliev, V.M. Khalilov

87

Magnetic Fields of Newly-Identified mCP Stars in the Kepler Field
I.A. Yakunin, L.L. Romanyuk, Z. Mikuldsek, J. Јапгк, A. Moiseeva, S. Hiimmerich

93

Fundamental parameters of mCP star HD 17330 with wide depression in the continuum
A.V. Moiseeva, I.A. Yakunin, L.I. Romanyuk, E.A. Semenko, D.O. Kudryavtsev

97

Influence of pecularity effect on Balmer discontinuity in the atmospheres of magnetic CP stars
S.N. Gulahmadova, S.G. Aliyev, J.M. Kuli-zadea, V.M. Khalilov

101

Magnetic activity of young late-type stars
K.N. Grankin

106

Superflares and cycles as stages of the evolution of stellar activity
M. Katsova

121

On some spectral features of ww vul in the exterme state of brigtness
B.N. Rustam,ov, Kh.M. Mihailov, I. Alakbarov, V.I. Aliyeva, S.O. Mammadova

134

Photometric and spectroscopic peculiarities of the unique Herbig Be star HD52721 - an eclipsing close binary system
M.A. Pogodin, N.G. Beskrovnaya, S.E. Pavlovskiy, L.S. Guseva, V.V. Kuprianov, D.L Gorshunov, О.V. Ezhkova, N.R. Ikhsanov, G.G. Valyavin

143

Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars
M.A. Pogodin, N.A. Drake, N.G. Beskrovnaya, S. Hubrig, M. Schöller, S.P. Järvinen, A. Cahuasqui, О.V. Kozlova, Yu. Alekseev, S.E. Pavlovskiy

152

Long-time spectral variability of the star IL Cep A
N.Z. Ismailov, M.A. Pogodin, G.R. Bahaddinova, U.Z. Bashirova

155

Circumstellar spectral variations of the star HD 190073
G.R. Bahaddinova, N.Z. Ismailov, U.Z. Bashirova

161

Distance measurements towards young Milky Way objects; rotation curve
J. Krelowski, A. Strobel

170

Can massive stars fly out of open clusters and evolve outside them?
M. Obolentseva, A. Kostenkov, A. Kholtygin

179

Starformation in orion nebulae: Proplyds
G.B. Mamedkhanova

182

Monitoring of Luminous Blue Variables Candidates In M31
O.N. Sholukhova, S.N. Fabrika, A. Valcheva, P. Nedialkov

189

New LBV candidates in NGC 247 galaxy
Y.N. Solovyeva, A.S. Vinokurov, S.N. Fabrika, A.S. Vinokurov, O.N. Sholukhova, E.A. Nikolaeva

192

Multi-periodic oscillatory event in a stellar superflare: spectral analysis and interpretation
S. Mancuso, D. Barghini, D. Telloni

196