Chi Tauri

Parallax measurements made by the Hipparcos spacecraft put it at a distance of about 291 light-years (89 parsecs) from Earth.

Its mass is 2.6 times that of the Sun and its surface glows with an effective temperature of 10,300 K. It may be a binary star itself, as suggested from astrometric data from Hipparcos, although no orbit could be derived.

[4] It is a double-lined spectroscopic binary—the two stars are not resolved but their spectra have periodic Doppler shifts indicating orbital motion.

[4] The radial velocity of Chi Tauri B has a slow drift indicating the presence of another star in the system.

Because of this infrared excess, this unseen component is thought to be a pair of K-type main-sequence stars both with masses 70% of the Sun's.