2350 20160701171704.0 ASTROimport-507 Ruymaekers, G. 2000 Statistical properties of visual binaries We present a detailed statistical analysis of the orbital elements of a new self-consistent catalogue of visual double stars. We have tried to identify the several observational biases present in the sample but did not yet correct for them. Using a mass-luminosity relation, we compute the distribution of the mass ratio and of the masses of the components. Cuypers, J. Boffin, H. M. J. IAU Symposium 200 2000 172 http://esoads.eso.org/abs/2000IAUS..200P.172R published in NONREF