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Fig. 3

image

Moving, co-centered with planet, orthogonal coordinate system (X, Y), used for the calculation of D. The planetary disc (blue circle), with the center of coordinate “C”, obscures the stellar disk (yellow segment), moving across it with the projected velocity V (red vector). The X-axis is pointed to the center of stellar disc, for the egress (right panel), and opposite, for the ingress (left panel) phases, respectively.

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