The apsidal motion in both systems was studied by means of an O-C diagram analysis. We have collected all reliable times of minimum light gathered from the literature as well as from current databases of BAV and BBSAG observers or from the Besançon Double and Multiple Star Database. All photoelectric times of minimum were used with a weight of 10 in our computation. The current less precise measurements were weighted with a factor of 5, while the earlier visual and photographic times of minimum were given a weight of 1 or 0 due to the large scatter in these data.
Copyright ESO 2001