Positional data of W Aql. The positions are taken from 9 catalogues (see Table 3 and text) and cover the years 1913 to 2002. The (red) lines indicate the linear fit to the data points. The scatter is of the order of the angular separation of the binary system on the sky that is expected for a variability-induced movement. The positions of W Aql in the last century show a trend for a movement along PA = 38° with a space velocity v_LSR = 21.6 ± 4.1 km s^-1.