Fig. 6. Comparison between the predictions provided by the LSM (asterisks) and FCM (crosses) for the Sun. The two first frames refer to monochromatic calculations for 220.5 and 2545 nm. Continuous line represents the model intensities. The third picture shows the F'/F test for the Sun while the fourth frame illustrates the deviation of the intensity (model-fitted) at µ = 0.01 computed using LSM-Eq. (7) (dashed) and FCM (continuous, Eq. 4). Sun model atmosphere from ATLAS code. Fifth frame: the intensity distribution for a model with T_eff = 10500 K, log g = 4.5, log [M/H] = -5.0 at = 106.5 nm showing limb-brightening.