The Orbit of GG Tau A
The orbital and superhump periods of the deeply eclipsing dwarf nova SDSS J150240.98+333423.9
The orbital and superhump periods of the dwarf nova HS 0417+7445 in Camelopardalis
The orbital and superhump periods of the dwarf nova SDSS J093249.57+472523.0
The orbital and superhump periods of the SU UMa-type dwarf nova V1212 Tauri
The Orbital Decay of Embedded Binary Stars
The orbital period analyses for two cataclysmic variables: UZ Fornacis and V348 Puppis inside Period Gap
The Orbital Period and Negative Superhumps of the Nova-Like Cataclysmic Variable V378 Pegasi
The orbital period and system parameters of the recurrent nova T Pyx
The Orbital Period and Variability of the Dwarf Nova ES Draconis
The Orbital Period of Three Cataclysmic Variables from WASP Data
The orbital period of V458 Vulpeculae, a post double common-envelope nova
The Orbital Solution and Spectral Classification of the High-Mass X-Ray Binary IGR J01054-7253 in the Small Magellanic Cloud
The Origin and Evolution of the Halo PN BoBn 1: From a Viewpoint of Chemical Abundances Based on Multiwavelength Spectra
The Origin and Formation of the Circumstellar Disk
The origin of circumstellar features in the spectra of hot DA white dwarfs
The Origin of Enhanced Activity in the Suns of M67
The origin of mid-infrared emission in massive young stellar objects: multi-baseline VLTI observations of W33A
The Origin of OB Clusters: From 10 pc to 0.1 pc
The origin of peculiar molecular bands in cool DQ white dwarfs