Catalogue of Visual Binaries in Gaia DR2

We use Gaia DR2 data to construct a catalogue of visual binaries between 10 pc and 100 pc distance from the Sun. Based on data on positions and parallaxes, we have compiled a list of binary candidates containing all pairs of stars positioned within 1 parsec to one another. We have developed an algorithm involving the separation of sky into smaller regions for drastic reduction in calculation time. Based on distribution of parameters of binary candidates (difference between proper motions in pairs of stars vs physical separation between components), we have developed a criteria to distinguish between physical binaries and optical pairs. The resulting catalogue contains 10358 pairs, and 543 multiple systems.