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Tau4 Eridani
Tau4 Eridani (τ4 Eri / τ4 Eri) is a Class M3.5III, fourth-magnitude star in the constellation Eridanus. It has the seldom used proper name "Liberfluus" ("Liberflux"), which is Latin and means "Free-flowing" River .
Tau4 Eridani is a binary star system consisting primarily of Class M components, the brightest component being a Class M giant of apparent magnitude 3.66, having a mass and luminosity many times greater than that of the Sun . It is occasionally eclipse d by other stellar components within the system in ways similar to Algol . The entire star system is located about 260 light-year s from Earth.
lundi 23 septembre 2019
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