¹²CO(3–2) and (2–1) Hanning-smoothed spectra of CN 93 are plotted in black and red, respectively. The (3–2) and (2–1) spectra of the corresponding off-position are plotted in blue and green. Strong background components are present at velocities from –5 to –20 km s^-1. The signal at –28 km s^-1 is related to the globulette (marked). Velocities are relative local standard of rest (LSR).