On-the-sky distribution of the wide (on-the-sky component separation between 1000 and 3000 au) binaries. Only one component of the binary star candidates is plotted. The red circle shows the region, 15 arcmin = 0.25 deg, investigated by Scally et al. (1999) who found only four candidates. The orange (radius of 0.35 deg) circle shows the region we selected to test how the Elbow plot depends on the investigated spatial scale. The green circle is the (1 deg) large testing region and the blue circle (radius 0.35 deg) is outside where the stellar density is lower.