The definitive census of multiple star systems within ten parsecs

Our sun is a loner. It lacks a stellar companion hurtling through interstellar space with it. But we've known for a long time that that's actually relatively rare-most stars have at least one gravitationally bound partner. Understanding how exactly those stars are related to each other is critical for observational campaigns-especially for those of exoplanets. So a new paper posted to the arXiv preprint server from researchers at the University of Madrid that categorizes almost every sta...