The components of TZ Mensae have stellar classifications of A0 V and A8 V, both indicating that they are ordinary A-type main-sequence stars. They have masses of , and radii of , respectively. The primary has an effective temperature of and a luminosity 40 times that of the Sun (). As for the companion, it has a temperature of 7,178 K. and a luminosity less than The rotation of both stars is apparently synchronous with the orbital period, with projected rotational velocities of respectively. The system is estimated to be 141 million years old.
