Toy-model of a rotating star with an emitting spot with a angular dependent emission pattern. The diagram shows a 2D crosssection for the phase when the spot is closest to the observer. The y-axis is the rotation axis of the sphere. The inclination of the system (i) is defined as the angle between the rotation axis and observer line-of-sight. The spot-latitude (ϕ) is defined as angular distance from the equator. The emission pattern indicates the emission intensity depending on the viewing angle (Θ, the 3D angle between the magnetic axis and observer line-of-sight).