VZ Lib: a contact binary in a ternary system

Observed: 2007-2009, 14 sessions

Michel Bonnardeau
11 Jan 2008
Updated and revised: 2 July, 17 Sep 2009
Published: 2 Nov 2009

Abstract

Time series of this eclipsing contact binary are reported and times of minima (ToM) of the eclipses are measured. This system has a third component. From the O-C analysis of the observed ToM and of those in the literature, the orbital parameters of the third body can be derived: the orbital period is 34.8 yr and the inclination is 11.5 °.

Accepted for publication in the JAAVSO.