A new study of the rotational structure of the 0-0 to 13-0 bands of the 0 2 Schumann-Runge system has been performed using a high resolution spectrograph. The 0-0 band has been measured for the first time and precise values of molecular constants for the 7-0 to 11-0 bands have been determined. Previous results derived from high resolution spectra are confirmed and important measurements concerning predissociation line broadening are also presented.