Washington Double Star Catalogue Archives - Astrobiology

Left panel: Multiple observations of proper motion of Sirius B from 1980 to 2022. From Earth, the separation between Sirius A and B varies between 3 and 11 arcsec on a period of 50.1 years. Sirius was first detected as an astrometric binary though is now considered a visual system (data observations kindly provided by Dr. Rachel Matson from USNO). Right panel: Sirius A and B characteristic wobble of astrometric binaries. -- astro-ph.SR

Astronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography

Multiplicity Of Stellar Systems In The Solar Neighbourhood, Wide Binaries, And Planet-hosting Stars

by Keith CowingNovember 11, 2025November 11, 2025

This doctoral thesis studies stellar multiplicity in the solar neighborhood (d < 10 pc) and in systems hosting planets (d < 100 pc).