Apparent motion of a star across the celestial sphere at right angles to the observer's line of sight, generally measured in seconds of arc per year. Any radial motion (toward or away from the observer) is not included. Edmond Halley was the first to detect proper motions; the largest known is that of Barnard's star, about 10 seconds yearly.
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US Patent Issued to Honda Research Institute Europe on April 16 for "Estimating Objects Proper Motion Using Optical Flow, Kinematics and Depth Information" (German Inventors)
Apr 16, 2013; ALEXANDRIA, Va., April 16 -- United States Patent no. 8,422,741, issued on April 16, was assigned to Honda Research Institute...