Volume 32 (2020)

Detection of possible gamma emission flares in three interacting binary stars
D. Boneva, R. Zamanov

The problem of decipherment the Babylonian 'astrolabes'
M. G. Nickiforov, J. B. Tabov

Special Group of the Potentially Hazardous Asteroids
Ireneusz Wlodarczyk

Intra-night flickering of RS Ophiuchi:
II. Exponentially distributed quasi-period modes
Ts. B. Georgiev, R. K. Zamanov, S. Boeva, G. Latev, B. Spassov, J. Marti, G. Nikolov, S. Ibryamov, S. V. Tsvetkova, K. A. Stoyanov

High-resolution optical spectroscopy of Nova V392 Per
K. A. Stoyanov, T. Tomov, I. Stateva, S. Georgiev

Global parameters of the W UMa binaries NSVS 3777464, NSVS 5810460 and ASAS J212236+0657.3
D. Kjurkchieva, V. Popov, Y. Eneva, N. Petrov

Kinematical structure of open clusters within 1 kpc by Gaia
W. H. Elsanhoury

New four-color optical photometry of the young stars V521 Cyg and FHO 27
S. Ibryamov & E. Semkov

Comparison of photometric results between the Serbian and Bulgarian telescopes and activities in line with Gaia Alerts (Gaia-FUN-TO)
Goran Damljanovic, Svetlana Boeva, Georgi Latev, Rumen Bachev, Oliver Vince, Miljana D. Jovanovic, Zorica Cvetkovic, Rade Pavlovic

The 40 cm remote-controlled telescope Meade LX200ACF of the Shumen Astronomical Observatory
D. Kjurkchieva, D. Marchev, B. Borisov, S. Ibryamov, D. Dimitrov, V. Popov, Al. Milev, N. Petrov

Stellar systems in the Local group: Large Magellanic Cloud star clusters
Grigor Nikolov

Spectral and spectropolarimetric studies of Be/X-ray binaries
Yanko Nikolov