Geometrical properties of the interaction of a planetary body with its surrounding magnetized plasma with B₀: unperturbed stellar wind magnetic field, v_sw: stellar wind velocity, v_orbit: orbital velocity of planet, v₀: relative velocity between planet and stellar wind plasma, M_exo: magnetic moment of planet (in this figure it points out of the displayed plane), : direction of Alfvén wing in parallel direction of B₀, : direction of Alfvén wing in anti-parallel direction of B₀, Θ: angle between v₀ and normal to B₀, : angles between both Alfvén wings and B₀, and Θ_M: angle between B₀ and planetary magnetic moment M_exo. The Poynting flux is calculated through a plane perpendicular to B₀. Note, the properties are displayed in the rest frame of the obstacle, besides the orbital and stellar wind velocity (which have been added for clarity in an inertial rest frame).