Zeta1 Antliae

Zeta1 Antliae is the Bayer designation for a binary star system in the southern constellation of Antlia. Based upon parallax measurements, the pair are located at a distance of roughly 350 ly from Earth. They have apparent magnitudes of +6.20 and +7.01 and are separated by 8.042 arcseconds. The apparent magnitude of the combined system is +5.76, which is bright enough to be seen with the naked eye in suitably dark skies.

The two system components A and B are both A-type main sequence stars, hotter, larger, and more luminous than the Sun. The primary is spinning rapidly and the secondary relatively slowly. The primary has a mass of, an effective temperature of $9,641 K$, a radius of , and a bolometric luminosity of. The secondary has a mass of, an effective temperature of $8,872 K$, a radius of , and a bolometric luminosity of.