Edmond Halley, English astronomer, mathematician, meteorologist, and physicist, (c1850). Halley (1656-1742), Astronomer Royal from 1720 until 1742, discovered the proper motions of stars and the periodicity of comets. He correctly calculated that the comets seen in 1531 and 1607 were the same objects that followed a 76 year orbit - the comet now know as 'Halley's Comet'. Unfortunately, Halley did not live to see his prediction come true when the comet returned on Christmas Eve 1758. Taken from the book Old England's Worthies. (London, c1850). (Colorised black and white print).

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