  Visual binary stars are the most abundant class of observed binaries. The
most comprehensive list of data on visual binaries compiled recently by
cross-matching the largest catalogues of visual binaries allowed a statistical
investigation of observational parameters of these systems. The dataset was
cleaned by correcting uncertainties and misclassifications, and supplemented
with available parallax data. The refined dataset is free from technical biases
and contains 3676 presumably physical visual pairs of luminosity class V with
known angular separations, magnitudes of the components, spectral types, and
parallaxes. We also compiled a restricted sample of 998 pairs free from
observational biases due to the probability of binary discovery. Certain
distributions of observational and physical parameters of stars of our dataset
are discussed.
