Four-colour photometry of eclipsing binaries. XXXVIII. Light curves of the triple system V906 Scorpii

Complete $uvby$ light curves of the detached triple-lined late B-type eclipsing binary V906 Scorpii, secured from 1987 to 1991, are presented. A detailed photometric analysis based on these observations and on new spectroscopic material yields accurate masses and radii (errors 〈~ 2%) for the components, confirms that the system is a member of NGC 6475 (Messier 7), and is published separately \cite[(Alencar et al. 1997)]{ale97}. Based on observations done with the Danish 50 cm Telescope (SAT) at the European Southern Observatory (ESO), La Silla, Chile. Table 2 presented in this paper will only be accessible in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html