V471 Tauri star

V471 Tauri star

[¦vē‚fȯr‚sev·ən·tē‚wən ′tȯr·ē ‚stär]
(astronomy)
A binary star, displaying irregular variability, in which one component is a main-sequence star and the other is either a white dwarf star or a star that is evolving toward the white dwarf state and is surrounded by a planetary nebula.