XZ Tauri

XZ Tauri is a binary system approximately 140 pc away in the constellation Taurus. The system consists of two T Tauri stars orbiting each other about 6 billion kilometers apart (roughly the same distance as Pluto is from the Sun). The system made news in 2000 when a superflare was observed in the system.

A third star, component C, has been observed at a separation of $0.742$, but subsequent observations failed to find it. The T Tauri star HL Tauri, $0.172$ away, is also sometimes listed as a companion.