Saturday, December 25, 2010

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Edmund Halley and the Comet


P lmost 250 years before a rock band originally called The Saddlemen take the name of Bill Haley Haley's Comets With , Edmund Halley with two "L "this one, published in 1705 the sum of his work in astronomy, Latin Astronomiae Cometicae Synopsis , then in English translation A Synopsis Of The Astronomy of Comets ( Synopsis of the Astronomy of Comets ).



This paper showed that Edmund Halley comet observed in 1682 was very likely that already observed in 1456, 1531 and 1607, and it would be observed again in 1758.
Born in 1656, Halley had no doubt that there was little chance he is alive at the return of this comet, for it would have had to live to 102 years. He has not had the pleasure to see that his theory and demonstration were valid.

But the comet will eventually become known as Halley was well appointment, appearing on December 25, 1758, 15 years after the death of the astronomer. If you are

abstruse religious character of December 25 or his unbridled commercialism, join me then to see a beautiful example of the genius of the human spirit, saluting the man of science of the Enlightenment, a friend of another great scientist Isaac Newton.



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Illustration hosted on the site Science Photo Library with the following description:
Credit: Royal Astronomical Society / Science Photo Library
Caption : Halley's paper on comets. Title page of An Français translational and reprint of the paper A Synopsis of the Astronomy of Comets (1705), by the English astronomer Edmond Halley (1656-1742). It was in this paper that Halley announced his theory that the comets seen in 1456, 1531, 1607 and 1682 were the same object. In the same paper, he made his successful prediction of its return in 1758. The comet was subsequently named Halley's Comet in his honour. The original paper was written in Latin as Astronomiae Cometicae Synopsis, and was first published in 1705 in Philosophical Transactions, the journal of the Royal Society of London. At the time, Halley was Savilian Professor of Geometry at Oxford University, a position he had held since 1703. He was made Astronomer Royal in 1720.

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