Visibility curves of Alpha Centauri A and B (VLTI+VINCI)

Visibility curves of the two stars Alpha Centauri A and B (with a "calibration" star, Theta Centauri) from which the angular diameters, i.e. the angle subtended by their disks, can be deduced. The data from observations at different baselines, with the corresponding uncertainties, are indicated by red points.