Fig. 6.

Comparison of the diffracted light images calculated for various misalignments, while keeping the ISD z0 = 144 348 mm and solar angular size R⊙ = 16 arcmin constant. The panels from left to right show a symmetrical configuration, a solar shift of 30 arcsec along the vertical direction, the same solar shift and the telescope tilt around the vertical axis (in the image the effects occur in the y- and x-directions), and finally, the solar shift in the horizontal direction and the tilt around the vertical axis (constructive effect along the x-axis in the image). The logarithmic color scale is slightly different from that in Fig. 2. The profiles in the images are given in the bottom panel, the vignetted zone is given by the shaded area, and the solar limb is denoted by dotted lines.
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