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James Bradley (1692-1762) English astronomer, born at Sherborne, near Cheltenham, Gloucestershire. Appointed Savilian professor of astronomy at Oxford (1721). As third Astronomer Royal (1742-1762) he followed Edmond Halley as director of the Royal Greenwich Observatory. Bradley discovered the aberration of light. From "The Gallery of Portraits", Vol VI, by Charles Knight (London, 1836). Engraving. (Photo by: Universal History Archive/UIG via Getty Images)