La binaria espectroscópica ζ Horologii

Abstract

Spectra taken at Bosque Alegre from 1949 through 1951 and from 1960 through 1963 have confirmed that we are dealing with a double-lined spectroscopic binary and allowed us to determine the following orbital elements: P=12.9274 days; γ= 5.8 km/sec; K₁= 58.1 km/sec; K₂= 66.1 km/sec; e=0.25; ω=78.6; T= 7.361 days; a₁ sin i= 1.00 x 10⁷ km; a₂ sin i= 1.14 x 10⁷ km; M₁=sin³i=1.3 Mₒ; M₂ sin³i=1.1 Mₒ. The paper in full will appear elsewhere.