VZ Lib: a contact binary in a ternary system [Observed: 2007-2009, 14 sessions]
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 °.