Projection of the normal to the orbit (blue) and of the rotation axis on the Laplace plane (black for the solid case, red for model 1 and green for model 2) over the period of the main precession, beginning at J2000 (thin curves) and over the observation period of Stiles et al. (2008) (thick curves). The “+” marker is the projection of the rotation axis measured by Stiles et al. (2008). (Unit of the graph is radian.)
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