Volume 45 number 2 (2017)
(Abstract only) From new and published photometry of the eclipsing binary zeta Phe (HR 338) a period of 1.66977220(3) days was determined and a new epoch of HJD 2432500.021511 selected. Using the 60+ years of photometry, published radial velocities, and new values for the period and epoch, the physical characteristics of the zeta Phe system were modeled using a software package called phoebe. Of note, the masses of the B6V and B9V components were determined to be 3.75 and 2.35 M, somewhat less than previous determinations. The period of apsidal motion of zeta Phe’s eccentric orbit was calculated to be 53.7 ± 0.3 years, indicating that one full cycle has been completed since photoelectric measurements of this star were first undertaken in 1950.