Three-dimensional mesh view of the model of the molecular envelope of AQ Sgr, which is defined by an oblate spheroid whose equatorial plane is inclined by ∼25° with respect to the plane of the sky. Left: view from Earth. Right: view from the direction defined by west in the plane of the sky (the observer is on the left). The X, Y, and Z axes are represented by red, green, and blue, respectively (positive directions are in the clockwise direction).