Tau2 Lupi

Tau2 Lupi, Latinized from τ2 Lup, is a binary star[3] system in the constellation Lupus.

It is visible to the naked eye with a combined apparent visual magnitude of 4.34.

[2] Based upon an annual parallax shift of 10.22[1] mas as seen from Earth, it is located around 319 light years from the Sun.

The two components orbit each other with a period of 26.2 years and a high eccentricity of 0.94.

[6] The brighter component is a magnitude 4.93 subgiant star with a stellar classification of F4 IV.