Orbit Determination of Close Binary Systems using Lucky Imaging

Orbit of the young very low-mass spectroscopic binary CHXR 74

Orbital and physical parameters of eclipsing binaries from the ASAS catalogue -- I. A sample of systems with components' masses between 1 and 2 M$_\odot$

Orbital and physical parameters of eclipsing binaries from the ASAS catalogue -- II. Two spotted M < 1 M$_\odot$ systems at different evolutionary stages

Orbital and physical parameters of eclipsing binaries from the ASAS catalogue -- III. Two new low-mass systems with rapidly evolving spots

Orbital and Physical Parameters of Visual Binary: WDS 17190-3459 (α 2000 = 17h 18m 56s and δ 2000 = - 34o 59' 22")

Orbital and stochastic far-UV variability in the nova-like system V3885 Sgr

Orbital eccentricity of binary radio pulsars in globular clusters and interaction between stars

Orbital eccentricity of the symbiotic star MWC 560

Orbital Ferromagnetism and Quantum Collapse in Stellar Plasmas

Orbital motion of the young brown dwarf companion TWA 5 B

Orbital Parameters of Binary Radio Pulsars : Revealing Their Structure, Formation, Evolution and Dynamic History

Orbital parameters of binary radio pulsars in globular clusters and stellar interactions

Orbital parameters of supergiant fast X-ray transients

Orbital period analysis of eclipsing Z Cam-type Dwarf Nova EM Cygni: Evidence of magnetic braking and a third body

Orbital Period Changes and Their Explanations in Two Algol Binaries: WY Per and RW Leo

Orbital Period Determinations for Four SMC Be/X-ray Binaries

Orbital Period Variations in Eclipsing Post Common Envelope Binaries

Orbital Periods for Three Recurrent Novae

Orbital periods of cataclysmic variables identified by the SDSS. VI. The 4.5-hr period eclipsing system SDSS J100658.40+233724.4