Back مسافة زاوية Arabic কৌণিক দূরত্ব Bengali/Bangla Distància angular Catalan Separación angular Spanish Distantzia angeluar Basque فاصله زاویهای Persian Distance angulaire French कोणीय दूरी Hindi Distanza angolare Italian 角距離 Japanese
Angular distance or angular separation is the measure of the angle between the orientation of two straight lines, rays, or vectors in three-dimensional space, or the central angle subtended by the radii through two points on a sphere. When the rays are lines of sight from an observer to two points in space, it is known as the apparent distance or apparent separation.
Angular distance appears in mathematics (in particular geometry and trigonometry) and all natural sciences (e.g., kinematics, astronomy, and geophysics). In the classical mechanics of rotating objects, it appears alongside angular velocity, angular acceleration, angular momentum, moment of inertia and torque.