Edmond Halley
Edmond (or Edmund) Halley (; – ) was an English astronomer, mathematician and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720.From an observatory he constructed on Saint Helena in 1676–77, Halley catalogued the southern celestial hemisphere and recorded a transit of Mercury across the Sun. He realised that a similar transit of Venus could be used to determine the distances between Earth, Venus, and the Sun. Upon his return to England, he was made a fellow of the Royal Society, and with the help of King Charles II, was granted a master's degree from Oxford.
Halley encouraged and helped fund the publication of Isaac Newton's influential ''Philosophiæ Naturalis Principia Mathematica'' (1687). From observations Halley made in September 1682, he used Newton's law of universal gravitation to compute the periodicity of Halley's Comet in his 1705 ''Synopsis of the Astronomy of Comets''. It was named after him upon its predicted return in 1758, which he did not live to see.
Beginning in 1698, Halley made sailing expeditions and made observations on the conditions of terrestrial magnetism. In 1718, he discovered the proper motion of the "fixed" stars. Provided by Wikipedia
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by Newton, Isaac (1642-1727).
Published 1687
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“...Halley, Edmond (1656-1742)....”Published 1687
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by Apollonius Pergaeus v262-v190
Published 1706
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“...Halley, Edmond, 1656-1742....”Published 1706
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Published 1706
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“...Halley, Edmond 1656-1742...”
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by Newton, Isaac (1642-1727).
Published 1707
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“...Halley, Edmond (1656-1742)...”Published 1707
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Published 1707
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“...Halley , Edmond (1656-1742)...”Identifiant pérenne de la notice dans le SUDOC
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Published 1710
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“...Halley, Edmond 1656-1742...”
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by Drebbel, Cornelis Jacobszoon 1572-1633
Published 1723
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“...Halley, Edmond 1656-1742...”Published 1723
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Published 1754
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“...Halley, Edmond 1656-1742...”
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by Newton, Isaac (1642-1727).
Published 1761
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“...Halley, Edmond (1656-1742)....”Published 1761
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by Apollonius Pergaeus v262-v190
Published 1861
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“...Halley, Edmond, 1656-1742....”Published 1861
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Published 1895
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“...Halley, Edmond, 1656-1742....”
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by Newton, Isaac (1642-1727).
Published 2006
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“...Halley, Edmond (1656-1742)....”Published 2006
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